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Waves_Physics_classroom

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Waves_Physics_classroom-v1s1

1. 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

2. Two signals (dashed) add to a solid

___ a) dissonance

___ b) fifth

___ c) octave

3. These two pulses will collide and produce

___ a) negative interference

___ b) positive interference

___ c) positive diffraction

___ d) negative diffraction

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

___ a) higher

___ b) unchanged

___ c) lower

5. Two signals (dashed) add to a solid

___ a) fifth

___ b) octave

___ c) dissonance

6. 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

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 gets longer

___ b) the wavelength stays the same

___ c) the wavelength gets shorter

8. 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

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) 50

___ b) 60

___ c) 20

___ d) 40

___ e) 30

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

___ a) reverberation instead of echo

___ b) echo instead of reverberation

___ c) both reverberation and echo

___ d) neither reverberation nor echo

11. 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.

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

___ a) unchanged

___ b) higher

___ c) lower

13. These two pulses will collide and produce

___ a) positive interference

___ b) negative diffraction

___ c) positive diffraction

___ d) negative interference

14. Two signals (dashed) add to a solid

___ a) dissonance

___ b) fifth

___ c) octave

15. 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 exactly the same pitch

___ e) it arrives at a higher pitch

16. These two pulses will collide and produce

___ a) negative interference

___ b) positive interference

___ c) positive diffraction

___ d) negative diffraction

Key to Waves_Physics_classroom-v1s1

1. 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

2. Two signals (dashed) add to a solid

- a) dissonance

+ b) fifth

- c) octave

3. These two pulses will collide and produce

+ a) negative interference

- b) positive interference

- c) positive diffraction

- d) negative diffraction

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

+ a) higher

- b) unchanged

- c) lower

5. Two signals (dashed) add to a solid

- a) fifth

+ b) octave

- c) dissonance

6. 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

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 gets longer

- b) the wavelength stays the same

- c) the wavelength gets shorter

8. 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

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) 50

- b) 60

+ c) 20

- d) 40

- e) 30

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

+ a) reverberation instead of echo

- b) echo instead of reverberation

- c) both reverberation and echo

- d) neither reverberation nor echo

11. 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.

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

- a) unchanged

+ b) higher

- c) lower

13. These two pulses will collide and produce

+ a) positive interference

- b) negative diffraction

- c) positive diffraction

- d) negative interference

14. Two signals (dashed) add to a solid

+ a) dissonance

- b) fifth

- c) octave

15. 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 exactly the same pitch

- e) it arrives at a higher pitch

16. These two pulses will collide and produce

- a) negative interference

+ b) positive interference

- c) positive diffraction

- d) negative diffraction

Waves_Physics_classroom-v2s1

1. 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) 50

___ b) 60

___ c) 20

___ d) 30

___ e) 40

2. 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 lower pitch

___ c) it arrives at exactly the same pitch

___ d) it arrives at a higher pitch

___ e) it arrives less than a tenth of a second after the original sound

3. 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

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

___ a) The note is over by the time the first beat is heard

___ b) Reverberation usually stifles the beats

___ c) The beats happen so many times per second you can't hear them.

___ d) Echo usually stifles the beats

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

___ a) unchanged

___ b) higher

___ c) lower

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

___ a) reverberation instead of echo

___ b) echo instead of reverberation

___ c) neither reverberation nor echo

___ d) both reverberation and echo

7. Two signals (dashed) add to a solid

___ a) octave

___ b) dissonance

___ c) fifth

8. 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

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

___ a) unchanged

___ b) higher

___ c) lower

10. These two pulses will collide and produce

___ a) positive diffraction

___ b) negative diffraction

___ c) positive interference

___ d) negative interference

11. Two signals (dashed) add to a solid

___ a) octave

___ b) dissonance

___ c) fifth

12. 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.

13. These two pulses will collide and produce

___ a) negative diffraction

___ b) positive interference

___ c) negative interference

___ d) positive diffraction

14. 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 higher speed

___ c) the low density rope supports a wave with a lower speed

___ d) the low density rope supports a wave with a higher frequency

15. These two pulses will collide and produce

___ a) positive interference

___ b) negative interference

___ c) positive diffraction

___ d) negative diffraction

16. Two signals (dashed) add to a solid

___ a) fifth

___ b) dissonance

___ c) octave

Key to Waves_Physics_classroom-v2s1

1. 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) 50

- b) 60

+ c) 20

- d) 30

- e) 40

2. 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 lower pitch

- c) it arrives at exactly the same pitch

- d) it arrives at a higher pitch

+ e) it arrives less than a tenth of a second after the original sound

3. 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

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

- a) The note is over by the time the first beat is heard

- b) Reverberation usually stifles the beats

+ c) The beats happen so many times per second you can't hear them.

- d) Echo usually stifles the beats

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

- a) unchanged

+ b) higher

- c) lower

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

+ a) reverberation instead of echo

- b) echo instead of reverberation

- c) neither reverberation nor echo

- d) both reverberation and echo

7. Two signals (dashed) add to a solid

- a) octave

- b) dissonance

+ c) fifth

8. 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

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

- a) unchanged

+ b) higher

- c) lower

10. These two pulses will collide and produce

- a) positive diffraction

- b) negative diffraction

+ c) positive interference

- d) negative interference

11. Two signals (dashed) add to a solid

- a) octave

+ b) dissonance

- c) fifth

12. 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.

13. These two pulses will collide and produce

- a) negative diffraction

+ b) positive interference

- c) negative interference

- d) positive diffraction

14. 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 higher speed

- c) the low density rope supports a wave with a lower speed

- d) the low density rope supports a wave with a higher frequency

15. These two pulses will collide and produce

- a) positive interference

+ b) negative interference

- c) positive diffraction

- d) negative diffraction

16. Two signals (dashed) add to a solid

- a) fifth

- b) dissonance

+ c) octave

Waves_Physics_classroom-v1s2

1. These two pulses will collide and produce

___ a) positive diffraction

___ b) negative diffraction

___ c) negative interference

___ d) positive interference

2. 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

3. Two signals (dashed) add to a solid

___ a) octave

___ b) dissonance

___ c) fifth

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

___ a) The note is over by the time the first beat is heard

___ b) Echo usually stifles the beats

___ c) Reverberation usually stifles the beats

___ d) The beats happen so many times per second you can't hear them.

5. 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.

6. These two pulses will collide and produce

___ a) positive interference

___ b) negative diffraction

___ c) negative interference

___ d) positive diffraction

7. People don't usually perceive an echo when

___ a) it arrives at a lower pitch

___ b) it arrives at a higher pitch

___ c) it arrives less than a tenth of a second after the original sound

___ d) it arrives at exactly the same pitch

___ e) it takes more than a tenth of a second after the original sound to arrive

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

___ a) lower

___ b) higher

___ c) unchanged

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) 50

___ b) 40

___ c) 30

___ d) 60

___ e) 20

10. These two pulses will collide and produce

___ a) negative interference

___ b) positive interference

___ c) negative diffraction

___ d) positive diffraction

11. Two signals (dashed) add to a solid

___ a) octave

___ b) dissonance

___ c) fifth

12. 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

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 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

14. Two signals (dashed) add to a solid

___ a) dissonance

___ b) octave

___ c) fifth

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

___ a) higher

___ b) unchanged

___ c) lower

16. 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

Key to Waves_Physics_classroom-v1s2

1. These two pulses will collide and produce

- a) positive diffraction

- b) negative diffraction

- c) negative interference

+ d) positive interference

2. 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

3. Two signals (dashed) add to a solid

- a) octave

- b) dissonance

+ c) fifth

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

- a) The note is over by the time the first beat is heard

- b) Echo usually stifles the beats

- c) Reverberation usually stifles the beats

+ d) The beats happen so many times per second you can't hear them.

5. 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.

6. These two pulses will collide and produce

+ a) positive interference

- b) negative diffraction

- c) negative interference

- d) positive diffraction

7. People don't usually perceive an echo when

- a) it arrives at a lower pitch

- b) it arrives at a higher pitch

+ c) it arrives less than a tenth of a second after the original sound

- d) it arrives at exactly the same pitch

- e) it takes more than a tenth of a second after the original sound to arrive

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

- a) lower

+ b) higher

- c) unchanged

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) 50

- b) 40

- c) 30

- d) 60

+ e) 20

10. These two pulses will collide and produce

+ a) negative interference

- b) positive interference

- c) negative diffraction

- d) positive diffraction

11. Two signals (dashed) add to a solid

+ a) octave

- b) dissonance

- c) fifth

12. 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

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 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

14. Two signals (dashed) add to a solid

+ a) dissonance

- b) octave

- c) fifth

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

+ a) higher

- b) unchanged

- c) lower

16. 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

Waves_Physics_classroom-v2s2

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

___ a) unchanged

___ b) lower

___ c) higher

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 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

3. Two signals (dashed) add to a solid

___ a) octave

___ b) fifth

___ c) dissonance

4. These two pulses will collide and produce

___ a) positive interference

___ b) negative interference

___ c) positive diffraction

___ d) negative diffraction

5. 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 lower 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 higher pitch

6. 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 echo.

___ c) The difference in path lengths creates more reverberation.

7. These two pulses will collide and produce

___ a) positive diffraction

___ b) positive interference

___ c) negative interference

___ d) negative diffraction

8. Two signals (dashed) add to a solid

___ a) fifth

___ b) dissonance

___ c) octave

9. Two signals (dashed) add to a solid

___ a) fifth

___ b) octave

___ c) dissonance

10. 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

11. 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

12. These two pulses will collide and produce

___ a) positive interference

___ b) positive diffraction

___ c) negative interference

___ d) negative diffraction

13. 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) 60

___ b) 20

___ c) 30

___ d) 40

___ e) 50

14. 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) The note is over by the time the first beat is heard

___ d) Echo usually stifles the beats

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

___ a) lower

___ b) higher

___ c) unchanged

16. 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

Key to Waves_Physics_classroom-v2s2

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

- a) unchanged

- b) lower

+ c) higher

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 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

3. Two signals (dashed) add to a solid

- a) octave

- b) fifth

+ c) dissonance

4. These two pulses will collide and produce

- a) positive interference

+ b) negative interference

- c) positive diffraction

- d) negative diffraction

5. 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 lower 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 higher pitch

6. 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 echo.

+ c) The difference in path lengths creates more reverberation.

7. These two pulses will collide and produce

- a) positive diffraction

+ b) positive interference

- c) negative interference

- d) negative diffraction

8. Two signals (dashed) add to a solid

+ a) fifth

- b) dissonance

- c) octave

9. Two signals (dashed) add to a solid

- a) fifth

+ b) octave

- c) dissonance

10. 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

11. 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

12. These two pulses will collide and produce

+ a) positive interference

- b) positive diffraction

- c) negative interference

- d) negative diffraction

13. 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) 60

+ b) 20

- c) 30

- d) 40

- e) 50

14. 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) The note is over by the time the first beat is heard

- d) Echo usually stifles the beats

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

- a) lower

+ b) higher

- c) unchanged

16. 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

Attribution (for quiz questions) under CC-by-SA license

http://en.wikiversity.org/wiki/How_things_work_college_course/Waves_(Physics_Classroom)

Study guide

http://www.physicsclassroom.com/class/waves