# User:Guy vandegrift/Quizbank/Archive1/College Physics/II FE

## TrigPhysFE_151021

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### TrigPhysFE_151021-v1s1

1. What are examples of energy?

___ a) momentum
___ b) ${\displaystyle {\frac {1}{2}}mv}$
___ c) all of the above
___ d) heat

2. In the essay "Why the sky is dark at night", a graph of velocity versus distance is shown. What is odd about those galaxies in the Virgo cluster (circled in the graph)?

___ a) they are not receding away from us
___ b) they have a wide variety of speeds
___ c) they all have nearly the same speed
___ d) the cluster is close to us

3. An object is placed 4.15 cm to the left of a converging lens with a focal length of 3.6 cm. How far is the image from the lens?

___a) 8.59 x 100 cm
___b) 1.53 x 101 cm
___c) 2.72 x 101 cm
___d) 4.83 x 101 cm
___e) 8.59 x 101 cm

4. What is the speed of a transverse wave on a string if the string is 1.13 m long, clamped at both ends, and harmonic number 5 has a frequency of 409 Hz?

___a) 1.26 x 102 unit
___b) 1.53 x 102 unit
___c) 1.85 x 102 unit
___d) 2.24 x 102 unit
___e) 2.71 x 102 unit

5. How fast is a 2663 eV electron moving?

___a) 3.1 x 107 m/s.
___b) 4.6 x 107 m/s.
___c) 6.9 x 107 m/s.
___d) 1 x 108 m/s.
___e) 1.5 x 108 m/s.

6. Which lens has the shorter focal length?

___ a)
___ b) They have the same focal lengh.
___ c)

7. Why do rough walls give a concert hall a “fuller” sound, compared to smooth walls?

___ a) The difference in path lengths creates more echo.
___ b) Rough walls make for a louder sound.
___ c) The difference in path lengths creates more reverberation.

8. Why don't we hear beats when two different notes on a piano are played at the same time?

___ a) Echo usually stifles the beats
___ b) Reverberation usually stifles the beats
___ c) The beats happen so many times per second you can't hear them.
___ d) The note is over by the time the first beat is heard

9. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

___a) 1.61 x 10-1 unit
___b) 1.95 x 10-1 unit
___c) 2.36 x 10-1 unit
___d) 2.86 x 10-1 unit
___e) 3.47 x 10-1 unit

10. What was Plank's understanding of the significance of his work on blackbody radiation?

___ a) he knew it would someday win him a Nobel prize
___ b) the thought it was some sort of mathematical trick
___ c) he eventually convinced his dissertation committee that the theory was correct
___ d) he was afraid to publish it for fear of losing his reputation

11.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
___ a) how a nearsighted person might see an object that is too close for comfort
___ b) how a nearsighted person might see a distant object
___ c) how a farsighted person might see a distant object
___ d) how a farsighted person might see an object that is too close for comfort

12. A 7.5 ohm resistor is connected in series to a pair of 7 ohm resistors that are in parallel. What is the net resistance?

___a) 8.3 ohms.
___b) 9.6 ohms.
___c) 11 ohms.
___d) 12.7 ohms.
___e) 14.5 ohms.

13. The same parallel plate capacitor, with area 0.75 m2, plate separation 0.53mm, and an applied voltage of 3.55 kV. How much charge is stored?

___a) 29.25 μC.
___b) 33.63 μC.
___c) 38.68 μC.
___d) 44.48 μC.
___e) 51.15 μC.

14. A cosmic ray alpha particle encounters Earth's magnetic field at right angles to a field of 11.4 μT. The kinetic energy is 307 keV. What is the radius of particle's orbit?

___a) 7 x 101 m.
___b) 2.2 x 102 m.
___c) 7 x 102 m.
___d) 2.2 x 103 m.
___e) 7 x 103 m.

15. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

___ a) true
___ b) false

16. An important principle that allows fiber optics to work is

___ a) the invariance of the speed of light
___ b) total internal reflection
___ c) total external refraction
___ d) the Doppler shift
___ e) partial internal absorption

#### Key to TrigPhysFE_151021-v1s1

1. What are examples of energy?

- a) momentum
- b) ${\displaystyle {\frac {1}{2}}mv}$
+ c) all of the above
- d) heat

2. In the essay "Why the sky is dark at night", a graph of velocity versus distance is shown. What is odd about those galaxies in the Virgo cluster (circled in the graph)?

- a) they are not receding away from us
+ b) they have a wide variety of speeds
- c) they all have nearly the same speed
- d) the cluster is close to us

3. An object is placed 4.15 cm to the left of a converging lens with a focal length of 3.6 cm. How far is the image from the lens?

-a) 8.59 x 100 cm
-b) 1.53 x 101 cm
+c) 2.72 x 101 cm
-d) 4.83 x 101 cm
-e) 8.59 x 101 cm

4. What is the speed of a transverse wave on a string if the string is 1.13 m long, clamped at both ends, and harmonic number 5 has a frequency of 409 Hz?

-a) 1.26 x 102 unit
-b) 1.53 x 102 unit
+c) 1.85 x 102 unit
-d) 2.24 x 102 unit
-e) 2.71 x 102 unit

5. How fast is a 2663 eV electron moving?

+a) 3.1 x 107 m/s.
-b) 4.6 x 107 m/s.
-c) 6.9 x 107 m/s.
-d) 1 x 108 m/s.
-e) 1.5 x 108 m/s.

6. Which lens has the shorter focal length?

- a)
- b) They have the same focal lengh.
+ c)

7. Why do rough walls give a concert hall a “fuller” sound, compared to smooth walls?

- a) The difference in path lengths creates more echo.
- b) Rough walls make for a louder sound.
+ c) The difference in path lengths creates more reverberation.

8. Why don't we hear beats when two different notes on a piano are played at the same time?

- a) Echo usually stifles the beats
- b) Reverberation usually stifles the beats
+ c) The beats happen so many times per second you can't hear them.
- d) The note is over by the time the first beat is heard

9. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

-a) 1.61 x 10-1 unit
-b) 1.95 x 10-1 unit
-c) 2.36 x 10-1 unit
-d) 2.86 x 10-1 unit
+e) 3.47 x 10-1 unit

10. What was Plank's understanding of the significance of his work on blackbody radiation?

- a) he knew it would someday win him a Nobel prize
+ b) the thought it was some sort of mathematical trick
- c) he eventually convinced his dissertation committee that the theory was correct
- d) he was afraid to publish it for fear of losing his reputation

11.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
- a) how a nearsighted person might see an object that is too close for comfort
- b) how a nearsighted person might see a distant object
- c) how a farsighted person might see a distant object
+ d) how a farsighted person might see an object that is too close for comfort

12. A 7.5 ohm resistor is connected in series to a pair of 7 ohm resistors that are in parallel. What is the net resistance?

-a) 8.3 ohms.
-b) 9.6 ohms.
+c) 11 ohms.
-d) 12.7 ohms.
-e) 14.5 ohms.

13. The same parallel plate capacitor, with area 0.75 m2, plate separation 0.53mm, and an applied voltage of 3.55 kV. How much charge is stored?

-a) 29.25 μC.
-b) 33.63 μC.
-c) 38.68 μC.
+d) 44.48 μC.
-e) 51.15 μC.

14. A cosmic ray alpha particle encounters Earth's magnetic field at right angles to a field of 11.4 μT. The kinetic energy is 307 keV. What is the radius of particle's orbit?

-a) 7 x 101 m.
-b) 2.2 x 102 m.
-c) 7 x 102 m.
-d) 2.2 x 103 m.
+e) 7 x 103 m.

15. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

- a) true
+ b) false

16. An important principle that allows fiber optics to work is

- a) the invariance of the speed of light
+ b) total internal reflection
- c) total external refraction
- d) the Doppler shift
- e) partial internal absorption

### TrigPhysFE_151021-v2s1

1. Why do rough walls give a concert hall a “fuller” sound, compared to smooth walls?

___ a) The difference in path lengths creates more echo.
___ b) The difference in path lengths creates more reverberation.
___ c) Rough walls make for a louder sound.

2. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

___a) 1.95 x 10-1 unit
___b) 2.36 x 10-1 unit
___c) 2.86 x 10-1 unit
___d) 3.47 x 10-1 unit
___e) 4.2 x 10-1 unit

3. An object is placed 3.55 cm to the left of a converging lens with a focal length of 6.8 cm. How far is the image from the lens?

___a) 4.18 x 100 cm
___b) 7.43 x 100 cm
___c) 1.32 x 101 cm
___d) 2.35 x 101 cm
___e) 4.18 x 101 cm

4. Why don't we hear beats when two different notes on a piano are played at the same time?

___ a) Echo usually stifles the beats
___ b) The beats happen so many times per second you can't hear them.
___ c) Reverberation usually stifles the beats
___ d) The note is over by the time the first beat is heard

5. How fast is a 2355 eV electron moving?

___a) 1.9 x 107 m/s.
___b) 2.9 x 107 m/s.
___c) 4.3 x 107 m/s.
___d) 6.5 x 107 m/s.
___e) 9.7 x 107 m/s.

6.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
___ a) how a nearsighted person might see a distant object
___ b) how a farsighted person might see an object that is too close for comfort
___ c) how a nearsighted person might see an object that is too close for comfort
___ d) how a farsighted person might see a distant object

7. An important principle that allows fiber optics to work is

___ a) total internal reflection
___ b) total external refraction
___ c) the invariance of the speed of light
___ d) partial internal absorption
___ e) the Doppler shift

8. What are examples of energy?

___ a) momentum
___ b) all of the above
___ c) ${\displaystyle {\frac {1}{2}}mv}$
___ d) heat

9. Which lens has the shorter focal length?

___ a)
___ b)
___ c) They have the same focal lengh.

10. The same parallel plate capacitor, with area 0.75 m2, plate separation 0.53mm, and an applied voltage of 3.55 kV. How much charge is stored?

___a) 29.25 μC.
___b) 33.63 μC.
___c) 38.68 μC.
___d) 44.48 μC.
___e) 51.15 μC.

11. A 6.6 ohm resistor is connected in series to a pair of 6.4 ohm resistors that are in parallel. What is the net resistance?

___a) 6.4 ohms.
___b) 7.4 ohms.
___c) 8.5 ohms.
___d) 9.8 ohms.
___e) 11.3 ohms.

12. In the essay "Why the sky is dark at night", a graph of velocity versus distance is shown. What is odd about those galaxies in the Virgo cluster (circled in the graph)?

___ a) they are not receding away from us
___ b) they have a wide variety of speeds
___ c) they all have nearly the same speed
___ d) the cluster is close to us

13. What was Plank's understanding of the significance of his work on blackbody radiation?

___ a) he knew it would someday win him a Nobel prize
___ b) he eventually convinced his dissertation committee that the theory was correct
___ c) he was afraid to publish it for fear of losing his reputation
___ d) the thought it was some sort of mathematical trick

14. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

___ a) true
___ b) false

15. A cosmic ray alpha particle encounters Earth's magnetic field at right angles to a field of 11.4 μT. The kinetic energy is 307 keV. What is the radius of particle's orbit?

___a) 7 x 101 m.
___b) 2.2 x 102 m.
___c) 7 x 102 m.
___d) 2.2 x 103 m.
___e) 7 x 103 m.

16. What is the speed of a transverse wave on a string if the string is 1.05 m long, clamped at both ends, and harmonic number 5 has a frequency of 153 Hz?

___a) 5.3 x 101 unit
___b) 6.43 x 101 unit
___c) 7.79 x 101 unit
___d) 9.43 x 101 unit
___e) 1.14 x 102 unit

#### Key to TrigPhysFE_151021-v2s1

1. Why do rough walls give a concert hall a “fuller” sound, compared to smooth walls?

- a) The difference in path lengths creates more echo.
+ b) The difference in path lengths creates more reverberation.
- c) Rough walls make for a louder sound.

2. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

-a) 1.95 x 10-1 unit
-b) 2.36 x 10-1 unit
-c) 2.86 x 10-1 unit
+d) 3.47 x 10-1 unit
-e) 4.2 x 10-1 unit

3. An object is placed 3.55 cm to the left of a converging lens with a focal length of 6.8 cm. How far is the image from the lens?

-a) 4.18 x 100 cm
+b) 7.43 x 100 cm
-c) 1.32 x 101 cm
-d) 2.35 x 101 cm
-e) 4.18 x 101 cm

4. Why don't we hear beats when two different notes on a piano are played at the same time?

- a) Echo usually stifles the beats
+ b) The beats happen so many times per second you can't hear them.
- c) Reverberation usually stifles the beats
- d) The note is over by the time the first beat is heard

5. How fast is a 2355 eV electron moving?

-a) 1.9 x 107 m/s.
+b) 2.9 x 107 m/s.
-c) 4.3 x 107 m/s.
-d) 6.5 x 107 m/s.
-e) 9.7 x 107 m/s.

6.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
- a) how a nearsighted person might see a distant object
+ b) how a farsighted person might see an object that is too close for comfort
- c) how a nearsighted person might see an object that is too close for comfort
- d) how a farsighted person might see a distant object

7. An important principle that allows fiber optics to work is

+ a) total internal reflection
- b) total external refraction
- c) the invariance of the speed of light
- d) partial internal absorption
- e) the Doppler shift

8. What are examples of energy?

- a) momentum
+ b) all of the above
- c) ${\displaystyle {\frac {1}{2}}mv}$
- d) heat

9. Which lens has the shorter focal length?

- a)
+ b)
- c) They have the same focal lengh.

10. The same parallel plate capacitor, with area 0.75 m2, plate separation 0.53mm, and an applied voltage of 3.55 kV. How much charge is stored?

-a) 29.25 μC.
-b) 33.63 μC.
-c) 38.68 μC.
+d) 44.48 μC.
-e) 51.15 μC.

11. A 6.6 ohm resistor is connected in series to a pair of 6.4 ohm resistors that are in parallel. What is the net resistance?

-a) 6.4 ohms.
-b) 7.4 ohms.
-c) 8.5 ohms.
+d) 9.8 ohms.
-e) 11.3 ohms.

12. In the essay "Why the sky is dark at night", a graph of velocity versus distance is shown. What is odd about those galaxies in the Virgo cluster (circled in the graph)?

- a) they are not receding away from us
+ b) they have a wide variety of speeds
- c) they all have nearly the same speed
- d) the cluster is close to us

13. What was Plank's understanding of the significance of his work on blackbody radiation?

- a) he knew it would someday win him a Nobel prize
- b) he eventually convinced his dissertation committee that the theory was correct
- c) he was afraid to publish it for fear of losing his reputation
+ d) the thought it was some sort of mathematical trick

14. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

- a) true
+ b) false

15. A cosmic ray alpha particle encounters Earth's magnetic field at right angles to a field of 11.4 μT. The kinetic energy is 307 keV. What is the radius of particle's orbit?

-a) 7 x 101 m.
-b) 2.2 x 102 m.
-c) 7 x 102 m.
-d) 2.2 x 103 m.
+e) 7 x 103 m.

16. What is the speed of a transverse wave on a string if the string is 1.05 m long, clamped at both ends, and harmonic number 5 has a frequency of 153 Hz?

-a) 5.3 x 101 unit
+b) 6.43 x 101 unit
-c) 7.79 x 101 unit
-d) 9.43 x 101 unit
-e) 1.14 x 102 unit

### TrigPhysFE_151021-v1s2

1. If a galaxy that is 10 Mpc away is receding at 700km/s, how far would a galaxy be receding if it were 20 Mpc away?

___ a) 1400km/s
___ b) 700km/s
___ c) 350km/s

2. An object of height 0.64 cm is placed 112 cm behind a diverging lens with a focal length of 65 cm. What is the height of the image?

___a) 1.36 x 10-1 cm
___b) 1.63 x 10-1 cm
___c) 1.96 x 10-1 cm
___d) 2.35 x 10-1 cm
___e) 2.82 x 10-1 cm

3. When light passes from glass to air

___ a) the frequency decreases
___ b) the frequency increases
___ c) it bends towards the normal
___ d) it does not bend
___ e) it bends away from the normal

4. If a source of sound is moving towards you, the pitch becomes

___ a) higher
___ b) unchanged
___ c) lower

5. A 0.8 Farad capacitor is charged with 1.7 Coulombs. What is the value of the electric field if the plates are 0.5 mm apart?

___a) 2.43 kV/m.
___b) 2.79 kV/m.
___c) 3.21 kV/m.
___d) 3.7 kV/m.
___e) 4.25 kV/m.

6. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

___ a) true
___ b) false

7. People don't usually perceive an echo when

___ a) it takes more than a tenth of a second after the original sound to arrive
___ b) it arrives at a higher pitch
___ c) it arrives at exactly the same pitch
___ d) it arrives less than a tenth of a second after the original sound
___ e) it arrives at a lower pitch

8. Blood is flowing at an average rate of 20.5 cm/s in an artery that has an inner diameter of 4.5 mm. What is the voltage across a hall probe placed across the inner diameter of the artery if the perpendicular magnetic field is 0.12 Tesla?

___a) 3.5 x 10-5 Volts
___b) 1.11 x 10-4 Volts
___c) 3.5 x 10-4 Volts
___d) 1.11 x 10-3 Volts
___e) 3.5 x 10-3 Volts

9. What are examples of energy?

___ a) heat
___ b) ${\displaystyle {\frac {1}{2}}mv^{2}}$
___ c) mgh where m is mass, g is gravity, and h is height
___ d) all of the above

10. A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

___a) 5.3 ohms.
___b) 6 ohms.
___c) 7 ohms.
___d) 8 ohms.
___e) 9.2 ohms.

11. When light passes from air to glass

___ a) the frequency decreases
___ b) it bends away from the normal
___ c) it bends towards the normal
___ d) the frequency increases
___ e) it does not bend

12. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

___a) 3.9 x 104 m/s.
___b) 5.8 x 104 m/s.
___c) 8.7 x 104 m/s.
___d) 1.3 x 105 m/s.
___e) 2 x 105 m/s.

13. While standing 0.76 km from a cliff, you measure the echo time to be 4.339 seconds. What is the temperature?

___a) 2.83 x 101Celsius
___b) 3.26 x 101Celsius
___c) 3.77 x 101Celsius
___d) 4.35 x 101Celsius
___e) 5.03 x 101Celsius

14. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 5a, 5a) is βkQ/a2, where β equals

___a) 6.46 x 10-4 unit
___b) 7.82 x 10-4 unit
___c) 9.48 x 10-4 unit
___d) 1.15 x 10-3 unit
___e) 1.39 x 10-3 unit

15. How would you describe Old Quantum Theory

___ a) neither complete nor self-consistent
___ b) self-consistent but not complete
___ c) complete and self-consistent
___ d) complete but not self-consistent

16. Which lens has the shorter focal length?

___ a)
___ b) They have the same focal lengh.
___ c)

#### Key to TrigPhysFE_151021-v1s2

1. If a galaxy that is 10 Mpc away is receding at 700km/s, how far would a galaxy be receding if it were 20 Mpc away?

+ a) 1400km/s
- b) 700km/s
- c) 350km/s

2. An object of height 0.64 cm is placed 112 cm behind a diverging lens with a focal length of 65 cm. What is the height of the image?

-a) 1.36 x 10-1 cm
-b) 1.63 x 10-1 cm
-c) 1.96 x 10-1 cm
+d) 2.35 x 10-1 cm
-e) 2.82 x 10-1 cm

3. When light passes from glass to air

- a) the frequency decreases
- b) the frequency increases
- c) it bends towards the normal
- d) it does not bend
+ e) it bends away from the normal

4. If a source of sound is moving towards you, the pitch becomes

+ a) higher
- b) unchanged
- c) lower

5. A 0.8 Farad capacitor is charged with 1.7 Coulombs. What is the value of the electric field if the plates are 0.5 mm apart?

-a) 2.43 kV/m.
-b) 2.79 kV/m.
-c) 3.21 kV/m.
-d) 3.7 kV/m.
+e) 4.25 kV/m.

6. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

- a) true
+ b) false

7. People don't usually perceive an echo when

- a) it takes more than a tenth of a second after the original sound to arrive
- b) it arrives at a higher pitch
- c) it arrives at exactly the same pitch
+ d) it arrives less than a tenth of a second after the original sound
- e) it arrives at a lower pitch

8. Blood is flowing at an average rate of 20.5 cm/s in an artery that has an inner diameter of 4.5 mm. What is the voltage across a hall probe placed across the inner diameter of the artery if the perpendicular magnetic field is 0.12 Tesla?

-a) 3.5 x 10-5 Volts
+b) 1.11 x 10-4 Volts
-c) 3.5 x 10-4 Volts
-d) 1.11 x 10-3 Volts
-e) 3.5 x 10-3 Volts

9. What are examples of energy?

- a) heat
- b) ${\displaystyle {\frac {1}{2}}mv^{2}}$
- c) mgh where m is mass, g is gravity, and h is height
+ d) all of the above

10. A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

-a) 5.3 ohms.
-b) 6 ohms.
-c) 7 ohms.
+d) 8 ohms.
-e) 9.2 ohms.

11. When light passes from air to glass

- a) the frequency decreases
- b) it bends away from the normal
+ c) it bends towards the normal
- d) the frequency increases
- e) it does not bend

12. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

-a) 3.9 x 104 m/s.
-b) 5.8 x 104 m/s.
+c) 8.7 x 104 m/s.
-d) 1.3 x 105 m/s.
-e) 2 x 105 m/s.

13. While standing 0.76 km from a cliff, you measure the echo time to be 4.339 seconds. What is the temperature?

-a) 2.83 x 101Celsius
+b) 3.26 x 101Celsius
-c) 3.77 x 101Celsius
-d) 4.35 x 101Celsius
-e) 5.03 x 101Celsius

14. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 5a, 5a) is βkQ/a2, where β equals

-a) 6.46 x 10-4 unit
-b) 7.82 x 10-4 unit
-c) 9.48 x 10-4 unit
-d) 1.15 x 10-3 unit
+e) 1.39 x 10-3 unit

15. How would you describe Old Quantum Theory

+ a) neither complete nor self-consistent
- b) self-consistent but not complete
- c) complete and self-consistent
- d) complete but not self-consistent

16. Which lens has the shorter focal length?

- a)
- b) They have the same focal lengh.
+ c)

### TrigPhysFE_151021-v2s2

1. People don't usually perceive an echo when

___ a) it takes more than a tenth of a second after the original sound to arrive
___ b) it arrives less than a tenth of a second after the original sound
___ c) it arrives at a lower pitch
___ d) it arrives at a higher pitch
___ e) it arrives at exactly the same pitch

2. A 1.3 Farad capacitor is charged with 1.9 Coulombs. What is the value of the electric field if the plates are 0.3 mm apart?

___a) 3.2 kV/m.
___b) 3.68 kV/m.
___c) 4.24 kV/m.
___d) 4.87 kV/m.
___e) 5.6 kV/m.

3. If a galaxy that is 10 Mpc away is receding at 700km/s, how far would a galaxy be receding if it were 20 Mpc away?

___ a) 350km/s
___ b) 700km/s
___ c) 1400km/s

4. A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

___a) 5.9 x 103 m/s.
___b) 8.9 x 103 m/s.
___c) 1.3 x 104 m/s.
___d) 2 x 104 m/s.
___e) 3 x 104 m/s.

5. An object of height 0.67 cm is placed 107 cm behind a diverging lens with a focal length of 70 cm. What is the height of the image?

___a) 2.65 x 10-1 cm
___b) 3.18 x 10-1 cm
___c) 3.82 x 10-1 cm
___d) 4.58 x 10-1 cm
___e) 5.49 x 10-1 cm

6. When light passes from glass to air

___ a) it does not bend
___ b) the frequency decreases
___ c) it bends towards the normal
___ d) it bends away from the normal
___ e) the frequency increases

7. Which lens has the shorter focal length?

___ a)
___ b)
___ c) They have the same focal lengh.

8. How would you describe Old Quantum Theory

___ a) complete and self-consistent
___ b) neither complete nor self-consistent
___ c) complete but not self-consistent
___ d) self-consistent but not complete

9. A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

___a) 5.3 ohms.
___b) 6 ohms.
___c) 7 ohms.
___d) 8 ohms.
___e) 9.2 ohms.

10. Blood is flowing at an average rate of 21.5 cm/s in an artery that has an inner diameter of 3.5 mm. What is the voltage across a hall probe placed across the inner diameter of the artery if the perpendicular magnetic field is 0.11 Tesla?

___a) 8.28 x 10-6 Volts
___b) 2.62 x 10-5 Volts
___c) 8.28 x 10-5 Volts
___d) 2.62 x 10-4 Volts
___e) 8.28 x 10-4 Volts

11. What are examples of energy?

___ a) heat
___ b) ${\displaystyle {\frac {1}{2}}mv^{2}}$
___ c) mgh where m is mass, g is gravity, and h is height
___ d) all of the above

12. When light passes from air to glass

___ a) it does not bend
___ b) the frequency increases
___ c) it bends towards the normal
___ d) the frequency decreases
___ e) it bends away from the normal

13. If a source of sound is moving towards you, the pitch becomes

___ a) unchanged
___ b) higher
___ c) lower

14. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

___ a) true
___ b) false

15. While standing 0.62 km from a cliff, you measure the echo time to be 3.648 seconds. What is the temperature?

___a) 1.47 x 101Celsius
___b) 1.7 x 101Celsius
___c) 1.97 x 101Celsius
___d) 2.27 x 101Celsius
___e) 2.62 x 101Celsius

16. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 6a, 5a) is βkQ/a2, where β equals

___a) 1.09 x 10-3 unit
___b) 1.33 x 10-3 unit
___c) 1.61 x 10-3 unit
___d) 1.95 x 10-3 unit
___e) 2.36 x 10-3 unit

#### Key to TrigPhysFE_151021-v2s2

1. People don't usually perceive an echo when

- a) it takes more than a tenth of a second after the original sound to arrive
+ b) it arrives less than a tenth of a second after the original sound
- c) it arrives at a lower pitch
- d) it arrives at a higher pitch
- e) it arrives at exactly the same pitch

2. A 1.3 Farad capacitor is charged with 1.9 Coulombs. What is the value of the electric field if the plates are 0.3 mm apart?

-a) 3.2 kV/m.
-b) 3.68 kV/m.
-c) 4.24 kV/m.
+d) 4.87 kV/m.
-e) 5.6 kV/m.

3. If a galaxy that is 10 Mpc away is receding at 700km/s, how far would a galaxy be receding if it were 20 Mpc away?

- a) 350km/s
- b) 700km/s
+ c) 1400km/s

4. A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

-a) 5.9 x 103 m/s.
-b) 8.9 x 103 m/s.
-c) 1.3 x 104 m/s.
-d) 2 x 104 m/s.
+e) 3 x 104 m/s.

5. An object of height 0.67 cm is placed 107 cm behind a diverging lens with a focal length of 70 cm. What is the height of the image?

+a) 2.65 x 10-1 cm
-b) 3.18 x 10-1 cm
-c) 3.82 x 10-1 cm
-d) 4.58 x 10-1 cm
-e) 5.49 x 10-1 cm

6. When light passes from glass to air

- a) it does not bend
- b) the frequency decreases
- c) it bends towards the normal
+ d) it bends away from the normal
- e) the frequency increases

7. Which lens has the shorter focal length?

+ a)
- b)
- c) They have the same focal lengh.

8. How would you describe Old Quantum Theory

- a) complete and self-consistent
+ b) neither complete nor self-consistent
- c) complete but not self-consistent
- d) self-consistent but not complete

9. A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

-a) 5.3 ohms.
-b) 6 ohms.
-c) 7 ohms.
+d) 8 ohms.
-e) 9.2 ohms.

10. Blood is flowing at an average rate of 21.5 cm/s in an artery that has an inner diameter of 3.5 mm. What is the voltage across a hall probe placed across the inner diameter of the artery if the perpendicular magnetic field is 0.11 Tesla?

-a) 8.28 x 10-6 Volts
-b) 2.62 x 10-5 Volts
+c) 8.28 x 10-5 Volts
-d) 2.62 x 10-4 Volts
-e) 8.28 x 10-4 Volts

11. What are examples of energy?

- a) heat
- b) ${\displaystyle {\frac {1}{2}}mv^{2}}$
- c) mgh where m is mass, g is gravity, and h is height
+ d) all of the above

12. When light passes from air to glass

- a) it does not bend
- b) the frequency increases
+ c) it bends towards the normal
- d) the frequency decreases
- e) it bends away from the normal

13. If a source of sound is moving towards you, the pitch becomes

- a) unchanged
+ b) higher
- c) lower

14. After passing through a the lens of a camera or the eye, the focal point is defined as where the rays meet.

- a) true
+ b) false

15. While standing 0.62 km from a cliff, you measure the echo time to be 3.648 seconds. What is the temperature?

+a) 1.47 x 101Celsius
-b) 1.7 x 101Celsius
-c) 1.97 x 101Celsius
-d) 2.27 x 101Celsius
-e) 2.62 x 101Celsius

16. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 6a, 5a) is βkQ/a2, where β equals

-a) 1.09 x 10-3 unit
-b) 1.33 x 10-3 unit
+c) 1.61 x 10-3 unit
-d) 1.95 x 10-3 unit
-e) 2.36 x 10-3 unit

### TrigPhysFE_151021-v1s3

1. The focal point is where

___ a) the center of the lens
___ b) rays meet whenever they pass through a lens
___ c) rays meet if they were parallel to the optical axis before striking a lens
___ d) rays meet whenever they are forming an image
___ e) rays meet if they are parallel to each other

2. Approximately how often does a supernovae occur in a typical galaxy?

___ a) once every 50 years
___ b) once every 5 years
___ c) once a 5 months

3. An electron tube on Earth's surface is oriented horizontally towards magnetic north. The electron is traveling at 0.06c, and Earth's magnetic field makes an angle of 48.5 degrees with respect to the horizontal. To counter the magnetic force, a voltage is applied between two large parallel plates that are 59 mm apart. What must be the applied voltage if the magnetic field is 45μT?

___a) 1.1 x 100 volts
___b) 3.6 x 100 volts
___c) 1.1 x 101 volts
___d) 3.6 x 101 volts
___e) 1.1 x 102 volts

4. What are examples of energy?

___ a) all of the above
___ b) heat
___ c) momentum
___ d) ${\displaystyle {\frac {1}{2}}mv}$

5. Two signals (dashed) add to a solid

___ a) dissonance
___ b) octave
___ c) fifth

6. The temperature is -2.4 degrees Celsius, and you are standing 0.94 km from a cliff. What is the echo time?

___a) 4.53 x 100 seconds
___b) 4.892 x 100 seconds
___c) 5.282 x 100 seconds
___d) 5.703 x 100 seconds
___e) 6.158 x 100 seconds

7. A parallel plate capacitor has both plates with an area of 1.45 m2. The separation between the plates is 0.93mm. Applied to the plates is a potential difference of 4.45 kV. What is the capacitance?

___a) 12 nF.
___b) 13.8 nF.
___c) 15.88 nF.
___d) 18.26 nF.
___e) 21 nF.

8. An ideal 5.9 volt battery is connected to a 0.059 ohm resistor. To measure the current an ammeter with a resistance of 24${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

___a) 71.1 A.
___b) 81.7 A.
___c) 94 A.
___d) 108.1 A.
___e) 124.3 A.

9. What happens to the wavelength on a wave on a stretched string if the wave passes from lightweight (low density) region of the rope to a heavy (high density) rope?

___ a) the wavelength gets longer
___ b) the wavelength gets shorter
___ c) the wavelength stays the same

10. What angle does the electric field at the origin make with the x-axis if a 2.8 nC charge is placed at x = -8 m, and a 1.5 nC charge is placed at y = -8.7 m?

___a) 2.44 x 101degrees
___b) 2.81 x 101degrees
___c) 3.25 x 101degrees
___d) 3.75 x 101degrees
___e) 4.33 x 101degrees

11.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
___ a) how a nearsighted person might see a distant object
___ b) how a nearsighted person might see an object that is too close for comfort
___ c) how a farsighted person might see a distant object
___ d) how a farsighted person might see an object that is too close for comfort

12. An object is placed 10.2 cm to the left of a diverging lens with a focal length of 16.6 cm. On the side, at a distance of 5.6 cm from the diverging lens is a converging lens with focal length equal to 4 cm. How far is the final image from the converging lens?

___a) 6.02 x 10-1 cm
___b) 1.9 x 100 cm
___c) 6.02 x 100 cm
___d) 1.9 x 101 cm
___e) 6.02 x 101 cm

13. If this represents the eye looking at an object, where is this object?

___ a) directly in front of the eye (almost touching)
___ b) very far away
___ c) One focal length in front of the eye
___ d) Two (of the other answers) are true
___ e) at infinity

14. A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

___a) 5.9 x 103 m/s.
___b) 8.9 x 103 m/s.
___c) 1.3 x 104 m/s.
___d) 2 x 104 m/s.
___e) 3 x 104 m/s.

15. Excepting cases where where quantum jumps in energy are induced in another object (i.e., using only the uncertainty principle), which would NOT put a classical particle into the quantum regime?

___ a) low speed
___ b) confinement to a small space
___ c) high speed
___ d) low mass

16. Which lens has the shorter focal length?

___ a) They have the same focal lengh.
___ b)
___ c)

#### Key to TrigPhysFE_151021-v1s3

1. The focal point is where

- a) the center of the lens
- b) rays meet whenever they pass through a lens
+ c) rays meet if they were parallel to the optical axis before striking a lens
- d) rays meet whenever they are forming an image
- e) rays meet if they are parallel to each other

2. Approximately how often does a supernovae occur in a typical galaxy?

+ a) once every 50 years
- b) once every 5 years
- c) once a 5 months

3. An electron tube on Earth's surface is oriented horizontally towards magnetic north. The electron is traveling at 0.06c, and Earth's magnetic field makes an angle of 48.5 degrees with respect to the horizontal. To counter the magnetic force, a voltage is applied between two large parallel plates that are 59 mm apart. What must be the applied voltage if the magnetic field is 45μT?

-a) 1.1 x 100 volts
-b) 3.6 x 100 volts
-c) 1.1 x 101 volts
+d) 3.6 x 101 volts
-e) 1.1 x 102 volts

4. What are examples of energy?

+ a) all of the above
- b) heat
- c) momentum
- d) ${\displaystyle {\frac {1}{2}}mv}$

5. Two signals (dashed) add to a solid

+ a) dissonance
- b) octave
- c) fifth

6. The temperature is -2.4 degrees Celsius, and you are standing 0.94 km from a cliff. What is the echo time?

-a) 4.53 x 100 seconds
-b) 4.892 x 100 seconds
-c) 5.282 x 100 seconds
+d) 5.703 x 100 seconds
-e) 6.158 x 100 seconds

7. A parallel plate capacitor has both plates with an area of 1.45 m2. The separation between the plates is 0.93mm. Applied to the plates is a potential difference of 4.45 kV. What is the capacitance?

-a) 12 nF.
+b) 13.8 nF.
-c) 15.88 nF.
-d) 18.26 nF.
-e) 21 nF.

8. An ideal 5.9 volt battery is connected to a 0.059 ohm resistor. To measure the current an ammeter with a resistance of 24${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

+a) 71.1 A.
-b) 81.7 A.
-c) 94 A.
-d) 108.1 A.
-e) 124.3 A.

9. What happens to the wavelength on a wave on a stretched string if the wave passes from lightweight (low density) region of the rope to a heavy (high density) rope?

+ a) the wavelength gets longer
- b) the wavelength gets shorter
- c) the wavelength stays the same

10. What angle does the electric field at the origin make with the x-axis if a 2.8 nC charge is placed at x = -8 m, and a 1.5 nC charge is placed at y = -8.7 m?

+a) 2.44 x 101degrees
-b) 2.81 x 101degrees
-c) 3.25 x 101degrees
-d) 3.75 x 101degrees
-e) 4.33 x 101degrees

11.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
- a) how a nearsighted person might see a distant object
- b) how a nearsighted person might see an object that is too close for comfort
- c) how a farsighted person might see a distant object
+ d) how a farsighted person might see an object that is too close for comfort

12. An object is placed 10.2 cm to the left of a diverging lens with a focal length of 16.6 cm. On the side, at a distance of 5.6 cm from the diverging lens is a converging lens with focal length equal to 4 cm. How far is the final image from the converging lens?

-a) 6.02 x 10-1 cm
-b) 1.9 x 100 cm
+c) 6.02 x 100 cm
-d) 1.9 x 101 cm
-e) 6.02 x 101 cm

13. If this represents the eye looking at an object, where is this object?

- a) directly in front of the eye (almost touching)
- b) very far away
- c) One focal length in front of the eye
+ d) Two (of the other answers) are true
- e) at infinity

14. A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

-a) 5.9 x 103 m/s.
-b) 8.9 x 103 m/s.
-c) 1.3 x 104 m/s.
-d) 2 x 104 m/s.
+e) 3 x 104 m/s.

15. Excepting cases where where quantum jumps in energy are induced in another object (i.e., using only the uncertainty principle), which would NOT put a classical particle into the quantum regime?

- a) low speed
- b) confinement to a small space
+ c) high speed
- d) low mass

16. Which lens has the shorter focal length?

- a) They have the same focal lengh.
- b)
+ c)

### TrigPhysFE_151021-v2s3

1. Two signals (dashed) add to a solid

___ a) octave
___ b) dissonance
___ c) fifth

2. Approximately how often does a supernovae occur in a typical galaxy?

___ a) once every 5 years
___ b) once every 50 years
___ c) once a 5 months

3. Excepting cases where where quantum jumps in energy are induced in another object (i.e., using only the uncertainty principle), which would NOT put a classical particle into the quantum regime?

___ a) low speed
___ b) high speed
___ c) low mass
___ d) confinement to a small space

4. An object is placed 13.2 cm to the left of a diverging lens with a focal length of 17.1 cm. On the side, at a distance of 5.1 cm from the diverging lens is a converging lens with focal length equal to 4 cm. How far is the final image from the converging lens?

___a) 1.86 x 10-1 cm
___b) 5.87 x 10-1 cm
___c) 1.86 x 100 cm
___d) 5.87 x 100 cm
___e) 1.86 x 101 cm

5. What angle does the electric field at the origin make with the x-axis if a 1.9 nC charge is placed at x = -5.4 m, and a 1.5 nC charge is placed at y = -7.1 m?

___a) 1.38 x 101degrees
___b) 1.59 x 101degrees
___c) 1.84 x 101degrees
___d) 2.13 x 101degrees
___e) 2.45 x 101degrees

6. An electron tube on Earth's surface is oriented horizontally towards magnetic north. The electron is traveling at 0.07c, and Earth's magnetic field makes an angle of 22.5 degrees with respect to the horizontal. To counter the magnetic force, a voltage is applied between two large parallel plates that are 54 mm apart. What must be the applied voltage if the magnetic field is 45μT?

___a) 2 x 10-1 volts
___b) 6.2 x 10-1 volts
___c) 2 x 100 volts
___d) 6.2 x 100 volts
___e) 2 x 101 volts

7. What are examples of energy?

___ a) heat
___ b) all of the above
___ c) ${\displaystyle {\frac {1}{2}}mv}$
___ d) momentum

8. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

___a) 3.9 x 104 m/s.
___b) 5.8 x 104 m/s.
___c) 8.7 x 104 m/s.
___d) 1.3 x 105 m/s.
___e) 2 x 105 m/s.

9.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
___ a) how a farsighted person might see an object that is too close for comfort
___ b) how a farsighted person might see a distant object
___ c) how a nearsighted person might see an object that is too close for comfort
___ d) how a nearsighted person might see a distant object

10. A parallel plate capacitor has both plates with an area of 1.05 m2. The separation between the plates is 0.63mm. Applied to the plates is a potential difference of 4.35 kV. What is the capacitance?

___a) 11.16 nF.
___b) 12.83 nF.
___c) 14.76 nF.
___d) 16.97 nF.
___e) 19.52 nF.

11. The temperature is -2.1 degrees Celsius, and you are standing 0.83 km from a cliff. What is the echo time?

___a) 5.033 x 100 seconds
___b) 5.435 x 100 seconds
___c) 5.868 x 100 seconds
___d) 6.336 x 100 seconds
___e) 6.842 x 100 seconds

12. The focal point is where

___ a) rays meet whenever they are forming an image
___ b) the center of the lens
___ c) rays meet if they are parallel to each other
___ d) rays meet if they were parallel to the optical axis before striking a lens
___ e) rays meet whenever they pass through a lens

13. Which lens has the shorter focal length?

___ a) They have the same focal lengh.
___ b)
___ c)

14. What happens to the wavelength on a wave on a stretched string if the wave passes from lightweight (low density) region of the rope to a heavy (high density) rope?

___ a) the wavelength gets shorter
___ b) the wavelength gets longer
___ c) the wavelength stays the same

15. An ideal 6.4 volt battery is connected to a 0.071 ohm resistor. To measure the current an ammeter with a resistance of 21${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

___a) 60.5 A.
___b) 69.6 A.
___c) 80 A.
___d) 92 A.
___e) 105.8 A.

16. If this represents the eye looking at an object, where is this object?

___ a) at infinity
___ b) Two (of the other answers) are true
___ c) very far away
___ d) One focal length in front of the eye
___ e) directly in front of the eye (almost touching)

#### Key to TrigPhysFE_151021-v2s3

1. Two signals (dashed) add to a solid

- a) octave
+ b) dissonance
- c) fifth

2. Approximately how often does a supernovae occur in a typical galaxy?

- a) once every 5 years
+ b) once every 50 years
- c) once a 5 months

3. Excepting cases where where quantum jumps in energy are induced in another object (i.e., using only the uncertainty principle), which would NOT put a classical particle into the quantum regime?

- a) low speed
+ b) high speed
- c) low mass
- d) confinement to a small space

4. An object is placed 13.2 cm to the left of a diverging lens with a focal length of 17.1 cm. On the side, at a distance of 5.1 cm from the diverging lens is a converging lens with focal length equal to 4 cm. How far is the final image from the converging lens?

-a) 1.86 x 10-1 cm
-b) 5.87 x 10-1 cm
-c) 1.86 x 100 cm
+d) 5.87 x 100 cm
-e) 1.86 x 101 cm

5. What angle does the electric field at the origin make with the x-axis if a 1.9 nC charge is placed at x = -5.4 m, and a 1.5 nC charge is placed at y = -7.1 m?

-a) 1.38 x 101degrees
-b) 1.59 x 101degrees
-c) 1.84 x 101degrees
-d) 2.13 x 101degrees
+e) 2.45 x 101degrees

6. An electron tube on Earth's surface is oriented horizontally towards magnetic north. The electron is traveling at 0.07c, and Earth's magnetic field makes an angle of 22.5 degrees with respect to the horizontal. To counter the magnetic force, a voltage is applied between two large parallel plates that are 54 mm apart. What must be the applied voltage if the magnetic field is 45μT?

-a) 2 x 10-1 volts
-b) 6.2 x 10-1 volts
-c) 2 x 100 volts
-d) 6.2 x 100 volts
+e) 2 x 101 volts

7. What are examples of energy?

- a) heat
+ b) all of the above
- c) ${\displaystyle {\frac {1}{2}}mv}$
- d) momentum

8. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

-a) 3.9 x 104 m/s.
-b) 5.8 x 104 m/s.
+c) 8.7 x 104 m/s.
-d) 1.3 x 105 m/s.
-e) 2 x 105 m/s.

9.
Shown is a corrective lens by a person who needs glasses. This ray diagram illustrates
+ a) how a farsighted person might see an object that is too close for comfort
- b) how a farsighted person might see a distant object
- c) how a nearsighted person might see an object that is too close for comfort
- d) how a nearsighted person might see a distant object

10. A parallel plate capacitor has both plates with an area of 1.05 m2. The separation between the plates is 0.63mm. Applied to the plates is a potential difference of 4.35 kV. What is the capacitance?

-a) 11.16 nF.
-b) 12.83 nF.
+c) 14.76 nF.
-d) 16.97 nF.
-e) 19.52 nF.

11. The temperature is -2.1 degrees Celsius, and you are standing 0.83 km from a cliff. What is the echo time?

+a) 5.033 x 100 seconds
-b) 5.435 x 100 seconds
-c) 5.868 x 100 seconds
-d) 6.336 x 100 seconds
-e) 6.842 x 100 seconds

12. The focal point is where

- a) rays meet whenever they are forming an image
- b) the center of the lens
- c) rays meet if they are parallel to each other
+ d) rays meet if they were parallel to the optical axis before striking a lens
- e) rays meet whenever they pass through a lens

13. Which lens has the shorter focal length?

- a) They have the same focal lengh.
- b)
+ c)

14. What happens to the wavelength on a wave on a stretched string if the wave passes from lightweight (low density) region of the rope to a heavy (high density) rope?

- a) the wavelength gets shorter
+ b) the wavelength gets longer
- c) the wavelength stays the same

15. An ideal 6.4 volt battery is connected to a 0.071 ohm resistor. To measure the current an ammeter with a resistance of 21${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

-a) 60.5 A.
+b) 69.6 A.
-c) 80 A.
-d) 92 A.
-e) 105.8 A.

16. If this represents the eye looking at an object, where is this object?

- a) at infinity
+ b) Two (of the other answers) are true
- c) very far away
- d) One focal length in front of the eye
- e) directly in front of the eye (almost touching)

http://en.wikiversity.org/w/index.php?title=How_things_work_college_course/Quantum_mechanics_timeline/Quiz&oldid=1396075
http://en.wikiversity.org/w/index.php?title=Why_is_the_Sky_Dark_at_Night/quiz&oldid=1396006
http://en.wikiversity.org/w/index.php?title=Physics_equations/25-Geometric_Optics/Q:thinLens&oldid=1378617
http://en.wikiversity.org/w/index.php?title=Physics_equations/18-Electric_charge_and_field/Q:findE&oldid=1378605
http://en.wikiversity.org/w/index.php?title=Physics_equations/25-Geometric_Optics/Q:vision&oldid=1378615
http://en.wikiversity.org/wiki/How_things_work_college_course/Waves_(Physics_Classroom)
http://en.wikiversity.org/w/index.php?title=Physics_equations/21-Circuits,_Bioelectricity,_and_DC_Instruments/Q:circuits&oldid=1391123
http://en.wikiversity.org/w/index.php?title=Physics_equations/22-Magnetism/Q:forces&oldid=1391166
Study guide
http://en.wikiversity.org/w/index.php?title=How_things_work_college_course/Quantum_mechanics_timeline&oldid=1383060
http://en.wikiversity.org/w/index.php?title=Why_is_the_Sky_Dark_at_Night&oldid=1248646
http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters
http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters
http://en.wikiversity.org/wiki/Light_and_optics
http://www.physicsclassroom.com/class/waves