# User:Guy vandegrift/Quizbank/Archive1/College Physics/II T1

## TrigPhysT1_151021

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### TrigPhysT1_151021-v1s1

1. 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

2. Two signals (dashed) add to a solid

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

3. A 0.047 kg mass is on a spring that causes the frequency of oscillation to be 26 cycles per second. The maximum velocity is 90.5 m/s. What is the maximum force on the mass?

___a) 1.5 x 102 N
___b) 3.2 x 102 N
___c) 6.9 x 102 N
___d) 1.5 x 103 N
___e) 3.2 x 103 N

4. A spring with spring constant 1.7 kN/m undergoes simple harmonic motion with a frequency of 3.9 kHz. The maximum force is 8.6 N. What is the total energy?

___a) 2.18 x 10-4 J
___b) 6.88 x 10-4 J
___c) 2.18 x 10-3 J
___d) 6.88 x 10-3 J
___e) 2.18 x 10-2 J

5. Two signals (dashed) add to a solid

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

6. 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

7. These two pulses will collide and produce

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

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) 20
___ c) 50
___ d) 60
___ e) 40

9. 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

10. While standing 0.58 km from a cliff, you measure the echo time to be 3.38 seconds. What is the temperature?

___a) 1.53 x 101Celsius
___b) 1.76 x 101Celsius
___c) 2.03 x 101Celsius
___d) 2.35 x 101Celsius
___e) 2.71 x 101Celsius

11. These two pulses will collide and produce

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

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

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

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

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

14. A spring of spring constant 8.7 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 7.1 mm. What is the maximum kinetic energy?

___a) 2.19 x 10-1 J
___b) 6.93 x 10-1 J
___c) 2.19 x 100 J
___d) 6.93 x 100 J
___e) 2.19 x 101 J

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

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

#### Key to TrigPhysT1_151021-v1s1

1. 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

2. Two signals (dashed) add to a solid

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

3. A 0.047 kg mass is on a spring that causes the frequency of oscillation to be 26 cycles per second. The maximum velocity is 90.5 m/s. What is the maximum force on the mass?

-a) 1.5 x 102 N
-b) 3.2 x 102 N
+c) 6.9 x 102 N
-d) 1.5 x 103 N
-e) 3.2 x 103 N

4. A spring with spring constant 1.7 kN/m undergoes simple harmonic motion with a frequency of 3.9 kHz. The maximum force is 8.6 N. What is the total energy?

-a) 2.18 x 10-4 J
-b) 6.88 x 10-4 J
-c) 2.18 x 10-3 J
-d) 6.88 x 10-3 J
+e) 2.18 x 10-2 J

5. Two signals (dashed) add to a solid

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

6. 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

7. These two pulses will collide and produce

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

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) 20
- c) 50
- d) 60
- e) 40

9. 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

10. While standing 0.58 km from a cliff, you measure the echo time to be 3.38 seconds. What is the temperature?

-a) 1.53 x 101Celsius
-b) 1.76 x 101Celsius
+c) 2.03 x 101Celsius
-d) 2.35 x 101Celsius
-e) 2.71 x 101Celsius

11. These two pulses will collide and produce

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

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

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

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

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

14. A spring of spring constant 8.7 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 7.1 mm. What is the maximum kinetic energy?

+a) 2.19 x 10-1 J
-b) 6.93 x 10-1 J
-c) 2.19 x 100 J
-d) 6.93 x 100 J
-e) 2.19 x 101 J

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

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

### TrigPhysT1_151021-v2s1

1. While standing 0.94 km from a cliff, you measure the echo time to be 5.522 seconds. What is the temperature?

___a) 1.57 x 101Celsius
___b) 1.81 x 101Celsius
___c) 2.09 x 101Celsius
___d) 2.41 x 101Celsius
___e) 2.79 x 101Celsius

2. 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) 60
___ c) 50
___ d) 40
___ e) 20

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

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

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) 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

5. 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

6. These two pulses will collide and produce

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

7. 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 longer
___ c) the wavelength gets shorter

8. A 0.062 kg mass is on a spring that causes the frequency of oscillation to be 65 cycles per second. The maximum velocity is 70.2 m/s. What is the maximum force on the mass?

___a) 1.8 x 103 N
___b) 3.8 x 103 N
___c) 8.3 x 103 N
___d) 1.8 x 104 N
___e) 3.8 x 104 N

9. Two signals (dashed) add to a solid

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

10. A spring of spring constant 8.7 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 7.1 mm. What is the maximum kinetic energy?

___a) 2.19 x 10-1 J
___b) 6.93 x 10-1 J
___c) 2.19 x 100 J
___d) 6.93 x 100 J
___e) 2.19 x 101 J

11. Two signals (dashed) add to a solid

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

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

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

13. 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.

14. What is the speed of a transverse wave on a string if the string is 1.19 m long, clamped at both ends, and harmonic number 6 has a frequency of 834 Hz?

___a) 2.25 x 102 unit
___b) 2.73 x 102 unit
___c) 3.31 x 102 unit
___d) 4.01 x 102 unit
___e) 4.86 x 102 unit

15. These two pulses will collide and produce

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

#### Key to TrigPhysT1_151021-v2s1

1. While standing 0.94 km from a cliff, you measure the echo time to be 5.522 seconds. What is the temperature?

+a) 1.57 x 101Celsius
-b) 1.81 x 101Celsius
-c) 2.09 x 101Celsius
-d) 2.41 x 101Celsius
-e) 2.79 x 101Celsius

2. 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) 60
- c) 50
- d) 40
+ e) 20

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

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

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) 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

5. 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

6. These two pulses will collide and produce

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

7. 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 longer
- c) the wavelength gets shorter

8. A 0.062 kg mass is on a spring that causes the frequency of oscillation to be 65 cycles per second. The maximum velocity is 70.2 m/s. What is the maximum force on the mass?

+a) 1.8 x 103 N
-b) 3.8 x 103 N
-c) 8.3 x 103 N
-d) 1.8 x 104 N
-e) 3.8 x 104 N

9. Two signals (dashed) add to a solid

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

10. A spring of spring constant 8.7 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 7.1 mm. What is the maximum kinetic energy?

+a) 2.19 x 10-1 J
-b) 6.93 x 10-1 J
-c) 2.19 x 100 J
-d) 6.93 x 100 J
-e) 2.19 x 101 J

11. Two signals (dashed) add to a solid

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

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

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

13. 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.

14. What is the speed of a transverse wave on a string if the string is 1.19 m long, clamped at both ends, and harmonic number 6 has a frequency of 834 Hz?

-a) 2.25 x 102 unit
-b) 2.73 x 102 unit
+c) 3.31 x 102 unit
-d) 4.01 x 102 unit
-e) 4.86 x 102 unit

15. These two pulses will collide and produce

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

### TrigPhysT1_151021-v1s2

1. A spring of spring constant 2.9 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 3.8 mm. What is the maximum kinetic energy?

___a) 2.09 x 10-3 J
___b) 6.62 x 10-3 J
___c) 2.09 x 10-2 J
___d) 6.62 x 10-2 J
___e) 2.09 x 10-1 J

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

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

3. Two signals (dashed) add to a solid

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

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

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

5. 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 stays the same
___ c) the wavelength gets longer

6. A spring with spring constant 9.6 kN/m is attached to a 9.1 gram mass. The maximum acelleration is 1.6 m/s2. What is the maximum displacement?

___a) 4.8 x 10-7 m
___b) 1.52 x 10-6 m
___c) 4.8 x 10-6 m
___d) 1.52 x 10-5 m
___e) 4.8 x 10-5 m

7. 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

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

9. The temperature is -3 degrees Celsius, and you are standing 0.66 km from a cliff. What is the echo time?

___a) 2.949 x 100 seconds
___b) 3.184 x 100 seconds
___c) 3.438 x 100 seconds
___d) 3.713 x 100 seconds
___e) 4.009 x 100 seconds

10. These two pulses will collide and produce

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

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

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

12. A spring with spring constant 2.8 kN/m undergoes simple harmonic motion with a frequency of 8.5 kHz. The maximum force is 8.2 N. What is the total energy?

___a) 1.2 x 10-2 J
___b) 3.8 x 10-2 J
___c) 1.2 x 10-1 J
___d) 3.8 x 10-1 J
___e) 1.2 x 100 J

13. 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

14. Two signals (dashed) add to a solid

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

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

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

#### Key to TrigPhysT1_151021-v1s2

1. A spring of spring constant 2.9 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 3.8 mm. What is the maximum kinetic energy?

-a) 2.09 x 10-3 J
-b) 6.62 x 10-3 J
+c) 2.09 x 10-2 J
-d) 6.62 x 10-2 J
-e) 2.09 x 10-1 J

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

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

3. Two signals (dashed) add to a solid

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

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

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

5. 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 stays the same
+ c) the wavelength gets longer

6. A spring with spring constant 9.6 kN/m is attached to a 9.1 gram mass. The maximum acelleration is 1.6 m/s2. What is the maximum displacement?

-a) 4.8 x 10-7 m
+b) 1.52 x 10-6 m
-c) 4.8 x 10-6 m
-d) 1.52 x 10-5 m
-e) 4.8 x 10-5 m

7. 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

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

9. The temperature is -3 degrees Celsius, and you are standing 0.66 km from a cliff. What is the echo time?

-a) 2.949 x 100 seconds
-b) 3.184 x 100 seconds
-c) 3.438 x 100 seconds
-d) 3.713 x 100 seconds
+e) 4.009 x 100 seconds

10. These two pulses will collide and produce

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

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

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

12. A spring with spring constant 2.8 kN/m undergoes simple harmonic motion with a frequency of 8.5 kHz. The maximum force is 8.2 N. What is the total energy?

+a) 1.2 x 10-2 J
-b) 3.8 x 10-2 J
-c) 1.2 x 10-1 J
-d) 3.8 x 10-1 J
-e) 1.2 x 100 J

13. 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

14. Two signals (dashed) add to a solid

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

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

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

### TrigPhysT1_151021-v2s2

1. 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) both reverberation and echo
___ d) reverberation instead of echo

2. 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

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

4. A spring with spring constant 1.1 kN/m undergoes simple harmonic motion with a frequency of 8.4 kHz. The maximum force is 3.8 N. What is the total energy?

___a) 6.56 x 10-4 J
___b) 2.08 x 10-3 J
___c) 6.56 x 10-3 J
___d) 2.08 x 10-2 J
___e) 6.56 x 10-2 J

5. People don't usually perceive an echo when

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

6. A spring of spring constant 2.9 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 3.8 mm. What is the maximum kinetic energy?

___a) 2.09 x 10-3 J
___b) 6.62 x 10-3 J
___c) 2.09 x 10-2 J
___d) 6.62 x 10-2 J
___e) 2.09 x 10-1 J

7. These two pulses will collide and produce

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

8. Two signals (dashed) add to a solid

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

9. While standing 0.58 km from a cliff, you measure the echo time to be 3.38 seconds. What is the temperature?

___a) 1.53 x 101Celsius
___b) 1.76 x 101Celsius
___c) 2.03 x 101Celsius
___d) 2.35 x 101Celsius
___e) 2.71 x 101Celsius

10. Two signals (dashed) add to a solid

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

11. A spring with spring constant 2.5 kN/m is attached to a 7.7 gram mass. The maximum acelleration is 1.2 m/s2. What is the maximum displacement?

___a) 3.7 x 10-8 m
___b) 1.17 x 10-7 m
___c) 3.7 x 10-7 m
___d) 1.17 x 10-6 m
___e) 3.7 x 10-6 m

12. 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.

13. 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

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 stays the same
___ c) the wavelength gets longer

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

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

#### Key to TrigPhysT1_151021-v2s2

1. 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) both reverberation and echo
+ d) reverberation instead of echo

2. 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

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

4. A spring with spring constant 1.1 kN/m undergoes simple harmonic motion with a frequency of 8.4 kHz. The maximum force is 3.8 N. What is the total energy?

-a) 6.56 x 10-4 J
-b) 2.08 x 10-3 J
+c) 6.56 x 10-3 J
-d) 2.08 x 10-2 J
-e) 6.56 x 10-2 J

5. People don't usually perceive an echo when

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

6. A spring of spring constant 2.9 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 3.8 mm. What is the maximum kinetic energy?

-a) 2.09 x 10-3 J
-b) 6.62 x 10-3 J
+c) 2.09 x 10-2 J
-d) 6.62 x 10-2 J
-e) 2.09 x 10-1 J

7. These two pulses will collide and produce

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

8. Two signals (dashed) add to a solid

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

9. While standing 0.58 km from a cliff, you measure the echo time to be 3.38 seconds. What is the temperature?

-a) 1.53 x 101Celsius
-b) 1.76 x 101Celsius
+c) 2.03 x 101Celsius
-d) 2.35 x 101Celsius
-e) 2.71 x 101Celsius

10. Two signals (dashed) add to a solid

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

11. A spring with spring constant 2.5 kN/m is attached to a 7.7 gram mass. The maximum acelleration is 1.2 m/s2. What is the maximum displacement?

-a) 3.7 x 10-8 m
-b) 1.17 x 10-7 m
-c) 3.7 x 10-7 m
-d) 1.17 x 10-6 m
+e) 3.7 x 10-6 m

12. 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.

13. 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

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 stays the same
+ c) the wavelength gets longer

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

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

### TrigPhysT1_151021-v1s3

1. These two pulses will collide and produce

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

2. These two pulses will collide and produce

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

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

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

4. A spring with spring constant 9.6 kN/m is attached to a 9.1 gram mass. The maximum acelleration is 1.6 m/s2. What is the maximum displacement?

___a) 4.8 x 10-7 m
___b) 1.52 x 10-6 m
___c) 4.8 x 10-6 m
___d) 1.52 x 10-5 m
___e) 4.8 x 10-5 m

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

6. 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

7. Two signals (dashed) add to a solid

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

8. While standing 0.66 km from a cliff, you measure the echo time to be 3.768 seconds. What is the temperature?

___a) 3.26 x 101Celsius
___b) 3.77 x 101Celsius
___c) 4.35 x 101Celsius
___d) 5.03 x 101Celsius
___e) 5.81 x 101Celsius

9. A spring with spring constant 7.7 kN/m undergoes simple harmonic motion with a frequency of 4.4 kHz. The maximum force is 9.4 N. What is the total energy?

___a) 5.74 x 10-5 J
___b) 1.81 x 10-4 J
___c) 5.74 x 10-4 J
___d) 1.81 x 10-3 J
___e) 5.74 x 10-3 J

10. A spring of spring constant 2.1 kN/m causes a mass to move with a period of 1.4 ms. The maximum displacement is 6.6 mm. What is the maximum kinetic energy?

___a) 1.45 x 10-3 J
___b) 4.57 x 10-3 J
___c) 1.45 x 10-2 J
___d) 4.57 x 10-2 J
___e) 1.45 x 10-1 J

11. 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) 20
___ c) 40
___ d) 50
___ e) 60

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

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

13. These two pulses will collide and produce

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

14. What is the speed of a transverse wave on a string if the string is 0.58 m long, clamped at both ends, and harmonic number 4 has a frequency of 543 Hz?

___a) 8.86 x 101 unit
___b) 1.07 x 102 unit
___c) 1.3 x 102 unit
___d) 1.57 x 102 unit
___e) 1.91 x 102 unit

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

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

#### Key to TrigPhysT1_151021-v1s3

1. These two pulses will collide and produce

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

2. These two pulses will collide and produce

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

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

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

4. A spring with spring constant 9.6 kN/m is attached to a 9.1 gram mass. The maximum acelleration is 1.6 m/s2. What is the maximum displacement?

-a) 4.8 x 10-7 m
+b) 1.52 x 10-6 m
-c) 4.8 x 10-6 m
-d) 1.52 x 10-5 m
-e) 4.8 x 10-5 m

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

6. 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

7. Two signals (dashed) add to a solid

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

8. While standing 0.66 km from a cliff, you measure the echo time to be 3.768 seconds. What is the temperature?

+a) 3.26 x 101Celsius
-b) 3.77 x 101Celsius
-c) 4.35 x 101Celsius
-d) 5.03 x 101Celsius
-e) 5.81 x 101Celsius

9. A spring with spring constant 7.7 kN/m undergoes simple harmonic motion with a frequency of 4.4 kHz. The maximum force is 9.4 N. What is the total energy?

-a) 5.74 x 10-5 J
-b) 1.81 x 10-4 J
-c) 5.74 x 10-4 J
-d) 1.81 x 10-3 J
+e) 5.74 x 10-3 J

10. A spring of spring constant 2.1 kN/m causes a mass to move with a period of 1.4 ms. The maximum displacement is 6.6 mm. What is the maximum kinetic energy?

-a) 1.45 x 10-3 J
-b) 4.57 x 10-3 J
-c) 1.45 x 10-2 J
+d) 4.57 x 10-2 J
-e) 1.45 x 10-1 J

11. 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) 20
- c) 40
- d) 50
- e) 60

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

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

13. These two pulses will collide and produce

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

14. What is the speed of a transverse wave on a string if the string is 0.58 m long, clamped at both ends, and harmonic number 4 has a frequency of 543 Hz?

-a) 8.86 x 101 unit
-b) 1.07 x 102 unit
-c) 1.3 x 102 unit
+d) 1.57 x 102 unit
-e) 1.91 x 102 unit

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

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

### TrigPhysT1_151021-v2s3

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

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

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

3. What is the speed of a transverse wave on a string if the string is 0.5 m long, clamped at both ends, and harmonic number 4 has a frequency of 316 Hz?

___a) 7.9 x 101 unit
___b) 9.57 x 101 unit
___c) 1.16 x 102 unit
___d) 1.4 x 102 unit
___e) 1.7 x 102 unit

4. Two signals (dashed) add to a solid

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

5. A spring with spring constant 9.6 kN/m is attached to a 9.1 gram mass. The maximum acelleration is 1.6 m/s2. What is the maximum displacement?

___a) 4.8 x 10-7 m
___b) 1.52 x 10-6 m
___c) 4.8 x 10-6 m
___d) 1.52 x 10-5 m
___e) 4.8 x 10-5 m

6. 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 longer
___ c) the wavelength gets shorter

7. A spring with spring constant 7.7 kN/m undergoes simple harmonic motion with a frequency of 4.4 kHz. The maximum force is 9.4 N. What is the total energy?

___a) 5.74 x 10-5 J
___b) 1.81 x 10-4 J
___c) 5.74 x 10-4 J
___d) 1.81 x 10-3 J
___e) 5.74 x 10-3 J

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

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

9. 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) 40
___ b) 60
___ c) 20
___ d) 50
___ e) 30

10. A spring of spring constant 8.7 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 7.1 mm. What is the maximum kinetic energy?

___a) 2.19 x 10-1 J
___b) 6.93 x 10-1 J
___c) 2.19 x 100 J
___d) 6.93 x 100 J
___e) 2.19 x 101 J

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

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

12. These two pulses will collide and produce

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

13. 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

14. These two pulses will collide and produce

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

15. These two pulses will collide and produce

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

#### Key to TrigPhysT1_151021-v2s3

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

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

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

3. What is the speed of a transverse wave on a string if the string is 0.5 m long, clamped at both ends, and harmonic number 4 has a frequency of 316 Hz?

+a) 7.9 x 101 unit
-b) 9.57 x 101 unit
-c) 1.16 x 102 unit
-d) 1.4 x 102 unit
-e) 1.7 x 102 unit

4. Two signals (dashed) add to a solid

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

5. A spring with spring constant 9.6 kN/m is attached to a 9.1 gram mass. The maximum acelleration is 1.6 m/s2. What is the maximum displacement?

-a) 4.8 x 10-7 m
+b) 1.52 x 10-6 m
-c) 4.8 x 10-6 m
-d) 1.52 x 10-5 m
-e) 4.8 x 10-5 m

6. 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 longer
- c) the wavelength gets shorter

7. A spring with spring constant 7.7 kN/m undergoes simple harmonic motion with a frequency of 4.4 kHz. The maximum force is 9.4 N. What is the total energy?

-a) 5.74 x 10-5 J
-b) 1.81 x 10-4 J
-c) 5.74 x 10-4 J
-d) 1.81 x 10-3 J
+e) 5.74 x 10-3 J

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

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

9. 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) 40
- b) 60
+ c) 20
- d) 50
- e) 30

10. A spring of spring constant 8.7 kN/m causes a mass to move with a period of 5.2 ms. The maximum displacement is 7.1 mm. What is the maximum kinetic energy?

+a) 2.19 x 10-1 J
-b) 6.93 x 10-1 J
-c) 2.19 x 100 J
-d) 6.93 x 100 J
-e) 2.19 x 101 J

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

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

12. These two pulses will collide and produce

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

13. 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

14. These two pulses will collide and produce

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

15. These two pulses will collide and produce

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