sound - review quiz 2
TRANSCRIPT
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8/9/2019 Sound - Review Quiz 2
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Wave Review Quiz 2
2010 Liang-Vergara
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Please select a Team.
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1. Team 1
2. Team 2
3. Team 34. Team 4
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18. What transferred in wave?
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1. neither mass nor
energy
2. energy only3. mass only
4. both mass and
energy
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19. Compared to A, pulse B has
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1. slower speed & more
energy
2. faster speed and same
energy
3. faster speed and less
energy
4. same speed and moreenergy
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20. Calculate the frequency of a wave if
its period is 0.25 sec.
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1. 1.0 Hz
2. 0.25 Hz
3. 12 Hz4. 4.0 Hz
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Racing Leader Board
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21. Wave has velocity of 30 m/s and
wavelength of 5.0 m. Frequency?
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1. 5.0 Hz
2. 150 Hz
3. 25 Hz4. 6.0 Hz
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22. Velocity of wave having a frequency of 25
Hz and wavelength of 10 m.
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1. 15 m/s
2. 2.5 m/s
3. 35 m/s4. 250 m/s
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23. Calculate wavelength of 250 Hz, 330
m/s wave
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1. 250 m
2. 1.32 m
3. 0.76 m4. 83,000 m
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24. Tuning fork freq 256 Hz, wave speed
330 m/s, wavelength?
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1. 1.28 m
2. 344 m
3. 128 m4. 0.744 m
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Racing Leader Board
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Team MVP
Points Team Participant
7 Team 4 Jair Olivares
7 Team 3 Jose Sanchez
7 Team 1 Kevin Tapia
7 Team 2 Christopher Sapon
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25. Tuning fork vibrating in air produces sound
waves. These waves are best classified as
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1. longitudinal - vibrate
perpendicular
2. longitudinal - vibrate
parallel
3. transverse - vibrate
perpendicular
4. transverse - vibrateparallel
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26. Electric bell connected to battery is sealed
inside a jar. What happens as air is removed from
jar?
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1. Bell's pitch decreases
2. Electric circuit stops working
because electromagnetic
radiation cannot travel in vacuum
3. Bell's loudness decreasesbecause sound waves cannot
travel through a vacuum
4. Bell's loudness increases
because of decreased air
resistance
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27. Frequency of sound wave
determines its
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1. speed
2. loudness
3. amplitude4. pitch
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28. Independent variable?
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1. frequency
2. wavelength
3. speed
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29. Dependent variable?
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1. frequency
2. wavelength
3. speed
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30. As frequency of sound increases,
what happens to speed?
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1. increase
2. decrease
3. remains the same
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Yourlittle cousin on a swing goes back and forth every
4 seconds, and the distance she travels is about 15m.
What is her speed?
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1. 60 m/s
2. 15/4 m/s
3. 4/15 m/s4. 19 m/s
5. Cannot be
determined
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Racing Leader Board
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What percentage of your current points
would you like to wager on the next
question?
1. 0%
2. 25%3. 50%
4. 75%
5. 100%
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Which statement is true?
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1. Higher freq = shorter
period
2. Higher freq = longer
period
3. Shorter period = faster
wave speed
4. Shorter period = slowerwave speed
5. Only 1 & 3
6. Only 1 & 4120120
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Racing Leader Board
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Team MVPPoints Team Participant
29 Team 4 Ana Pineda
29 Team 2 Christopher Sapon
27 Team 1 Kevin Tapia27 Team 3 Jose Sanchez