User:Guy vandegrift/Quizbank/Archive1/College Physics/II T1study

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TrigPhysT1_151021_Study[edit]

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If two exams have the same s-number, then v1 and v2 have the same questions, presented in different (random) order.
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TrigPhysT1_151021_Study-v1s1[edit]

1. Pulse interference 1.svgThese two pulses will collide and produce

___ a) positive diffraction
___ b) negative interference
___ c) negative diffraction
___ d) positive interference


2. Pulse interference 2.svgThese two pulses will collide and produce

___ a) positive diffraction
___ b) negative diffraction
___ c) negative interference
___ d) positive interference


3. Pulse interference 4.svgThese two pulses will collide and produce

___ a) positive interference
___ b) positive diffraction
___ c) negative diffraction
___ d) negative interference


4. Octave notes graphed.svg Two signals (dashed) add to a solid

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


5. Dissonant pitches graphed.svg Two signals (dashed) add to a solid

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


6. Perfect fifth notes graphed.svg Two signals (dashed) add to a solid

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


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

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


8. A tuning fork with a frequency of 440 Hz is played simultaneously with a tuning fork of 442 Hz. How many beats are heard in 10 seconds?

___ a) 30
___ b) 50
___ c) 40
___ d) 20
___ e) 60


9. If you start moving towards a source of sound, the pitch becomes

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


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

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


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

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


12. People don't usually perceive an echo when

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


13. A dense rope is connected to a rope with less density (i.e. fewer kilograms per meter). If the rope is stretched and a wave is sent along high density rope,

___ a) the low density rope supports a wave with a lower frequency
___ b) the low density rope supports a wave with a lower speed
___ c) the low density rope supports a wave with a higher speed
___ d) the low density rope supports a wave with a higher frequency


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


15. When a wave is reflected off a stationary barrier, the reflected wave

___ a) has lower amplitude than the incident wave
___ b) both of these are true
___ c) has higher frequency than the incident wave


16. Comparing a typical church to a professional baseball stadium, the church is likely to have

___ a) echo instead of reverberation
___ b) neither reverberation nor echo
___ c) reverberation instead of echo
___ d) both reverberation and echo


17. A 0.177 kg mass is on a spring that causes the frequency of oscillation to be 71 cycles per second. The maximum velocity is 60.9 m/s. What is the maximum force on the mass?

___a) 2.2 x 103 N
___b) 4.8 x 103 N
___c) 1 x 104 N
___d) 2.2 x 104 N
___e) 4.8 x 104 N


18. A spring with spring constant 5.9 kN/m is attached to a 6.5 gram mass. The maximum acelleration is 3.6 m/s2. What is the maximum displacement?

___a) 1.25 x 10-6 m
___b) 3.97 x 10-6 m
___c) 1.25 x 10-5 m
___d) 3.97 x 10-5 m
___e) 1.25 x 10-4 m


19. A spring of spring constant 8.4 kN/m causes a mass to move with a period of 2.2 ms. The maximum displacement is 2.1 mm. What is the maximum kinetic energy?

___a) 1.85 x 10-3 J
___b) 5.86 x 10-3 J
___c) 1.85 x 10-2 J
___d) 5.86 x 10-2 J
___e) 1.85 x 10-1 J


20. A spring with spring constant 2.7 kN/m undergoes simple harmonic motion with a frequency of 3.1 kHz. The maximum force is 6.3 N. What is the total energy?

___a) 2.32 x 10-3 J
___b) 7.35 x 10-3 J
___c) 2.32 x 10-2 J
___d) 7.35 x 10-2 J
___e) 2.32 x 10-1 J


21. The temperature is -2.3 degrees Celsius, and you are standing 0.62 km from a cliff. What is the echo time?

___a) 3.226 x 100 seconds
___b) 3.483 x 100 seconds
___c) 3.761 x 100 seconds
___d) 4.061 x 100 seconds
___e) 4.385 x 100 seconds


22. 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


23. What is the speed of a transverse wave on a string if the string is 0.45 m long, clamped at both ends, and harmonic number 4 has a frequency of 996 Hz?

___a) 1.53 x 102 unit
___b) 1.85 x 102 unit
___c) 2.24 x 102 unit
___d) 2.72 x 102 unit
___e) 3.29 x 102 unit


Key to TrigPhysT1_151021_Study-v1s1[edit]

1. Pulse interference 1.svgThese two pulses will collide and produce

- a) positive diffraction
- b) negative interference
- c) negative diffraction
+ d) positive interference


2. Pulse interference 2.svgThese two pulses will collide and produce

- a) positive diffraction
- b) negative diffraction
+ c) negative interference
- d) positive interference


3. Pulse interference 4.svgThese two pulses will collide and produce

+ a) positive interference
- b) positive diffraction
- c) negative diffraction
- d) negative interference


4. Octave notes graphed.svg Two signals (dashed) add to a solid

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


5. Dissonant pitches graphed.svg Two signals (dashed) add to a solid

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


6. Perfect fifth notes graphed.svg Two signals (dashed) add to a solid

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


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

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


8. A tuning fork with a frequency of 440 Hz is played simultaneously with a tuning fork of 442 Hz. How many beats are heard in 10 seconds?

- a) 30
- b) 50
- c) 40
+ d) 20
- e) 60


9. If you start moving towards a source of sound, the pitch becomes

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


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

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


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

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


12. People don't usually perceive an echo when

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


13. A dense rope is connected to a rope with less density (i.e. fewer kilograms per meter). If the rope is stretched and a wave is sent along high density rope,

- a) the low density rope supports a wave with a lower frequency
- b) the low density rope supports a wave with a lower speed
+ c) the low density rope supports a wave with a higher speed
- d) the low density rope supports a wave with a higher frequency


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


15. When a wave is reflected off a stationary barrier, the reflected wave

+ a) has lower amplitude than the incident wave
- b) both of these are true
- c) has higher frequency than the incident wave


16. Comparing a typical church to a professional baseball stadium, the church is likely to have

- a) echo instead of reverberation
- b) neither reverberation nor echo
+ c) reverberation instead of echo
- d) both reverberation and echo


17. A 0.177 kg mass is on a spring that causes the frequency of oscillation to be 71 cycles per second. The maximum velocity is 60.9 m/s. What is the maximum force on the mass?

-a) 2.2 x 103 N
+b) 4.8 x 103 N
-c) 1 x 104 N
-d) 2.2 x 104 N
-e) 4.8 x 104 N


18. A spring with spring constant 5.9 kN/m is attached to a 6.5 gram mass. The maximum acelleration is 3.6 m/s2. What is the maximum displacement?

-a) 1.25 x 10-6 m
+b) 3.97 x 10-6 m
-c) 1.25 x 10-5 m
-d) 3.97 x 10-5 m
-e) 1.25 x 10-4 m


19. A spring of spring constant 8.4 kN/m causes a mass to move with a period of 2.2 ms. The maximum displacement is 2.1 mm. What is the maximum kinetic energy?

-a) 1.85 x 10-3 J
-b) 5.86 x 10-3 J
+c) 1.85 x 10-2 J
-d) 5.86 x 10-2 J
-e) 1.85 x 10-1 J


20. A spring with spring constant 2.7 kN/m undergoes simple harmonic motion with a frequency of 3.1 kHz. The maximum force is 6.3 N. What is the total energy?

-a) 2.32 x 10-3 J
+b) 7.35 x 10-3 J
-c) 2.32 x 10-2 J
-d) 7.35 x 10-2 J
-e) 2.32 x 10-1 J


21. The temperature is -2.3 degrees Celsius, and you are standing 0.62 km from a cliff. What is the echo time?

-a) 3.226 x 100 seconds
-b) 3.483 x 100 seconds
+c) 3.761 x 100 seconds
-d) 4.061 x 100 seconds
-e) 4.385 x 100 seconds


22. 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


23. What is the speed of a transverse wave on a string if the string is 0.45 m long, clamped at both ends, and harmonic number 4 has a frequency of 996 Hz?

-a) 1.53 x 102 unit
-b) 1.85 x 102 unit
+c) 2.24 x 102 unit
-d) 2.72 x 102 unit
-e) 3.29 x 102 unit


Attribution (for quiz questions) under CC-by-SA license
http://en.wikiversity.org/wiki/How_things_work_college_course/Waves_(Physics_Classroom)
http://en.wikiversity.org/w/index.php?title=Physics_equations/18-Electric_charge_and_field/Q:findE&oldid=1378605
Study guide
http://www.physicsclassroom.com/class/waves
http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters