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- 1. Multiple Choice
travels through solids fastest because the molecules are closer together
speed of sound
wavelength
frequency
amplitude
- 2. Multiple Choice
The number of wavelengths that pass a point each second
frequency
wavelength
pitch
amplitude
- 3. Multiple ChoiceMaterial (matter) through which a wave travelsmediumDoppler Effectsoundpitch
- 4. Multiple Choice
How high or low a sound is; depends on the frequency
pitch
frequency
sound
medium
- 5. Multiple Choice
When the sound source moves, the frequency changes
ex. police car siren sounding lower pitch after the car passes
pitch
frequency
Doppler Effect
medium
- 6. Multiple Choice
A wave in which the vibration is in the same direction (parallel) as that in which the wave is traveling; sound waves
longitudinal wave
ocean wave
transverse wave
mechanical wave
- 7. Multiple Choice
The part of a longitudinal wave where the particles of the medium are close together.
rarefaction
compression
crest
trough
- 8. Multiple Choice
A part in a longitudinal wave where the particles are spread apart
compression
rarefaction
crest
trough
- 9. Multiple ChoiceWhen a sound is louder what measurement gets bigger?FrequencyAmplitudeWavelengthCrest
- 10. Multiple Choice
What does pitch depend on?
amplitude
frequency
intensity
volume of sound
- 11. Multiple ChoiceSound waves are ALWAYS what type of wave?TransverseLongitudinalDependsalways different
- 12. Multiple ChoiceWhat is B?cresttroughcompressionrarefaction
- 13. Multiple ChoiceThe speed of a sound wave depends onthe frequencythe mediumboth air temperature and mediumthe air temperature
- 14. Multiple Choice
How does a sound wave interact with a human ear?
vibrates the ear drum
bounces off the ear canal
rotates the ear drum
vibrates the ear canal
- 15. Multiple Choice
What is the speed (velocity) of a sound wave with frequency 2000 Hz and wavelength 0.4 m?
5×103 m/s
3.2×102 m/s
2×10−4 m/s
8×102 m/s
- 16. Multiple Choice
The musical note A above middle C has a frequency of 440 Hz. If the wavelength is measured to be 0.80m, what is the speed of the wave?
343 m/s
350 m/s
550 m/s
352 m/s
- 17. Multiple Choice
The decibel (dB) measures
sound intensity
sound intensity level
how large a speaker is
the electric potential difference across a speaker
- 18. Multiple ChoiceWhen two waves combine to form a new wave with a larger amplitude, it is calledDiffractionDestructive InterferenceResonanceConstructive Interference
- 19. Multiple ChoiceWhen two waves combine to form a new wave with a smaller amplitude, it is calledRefractionConstructive InterferenceResonanceDestructive Interference
- 20. Multiple ChoiceWhat occurs when vibrations traveling through an object match the object's natural frequency?reflectiondiffractionresonancerefraction
- 21. Multiple Choice
The hearing range of human ear is
20 Hz to 20,000 Hz
Less than 20 Hz
More than 20,000 Hz
20 Hz to 25,000 Hz
- 22. Multiple Choice
sound can not travel through .......
ocean water
distilled water
vacuum
air
- 23. Multiple Choice
Standing waves are created by
Two identical waves reflecting off each other
Two identical waves being diffracted together
Two identical waves move through each other in opposite directions
Two identical waves are diffracted from two identical sources
- 24. Multiple Choice
In the diagram which letters represent the nodes
A B C
A C E
B D
B D E
A C D
- 25. Multiple Choice
How many antinodes does this standing wave have?
5
6
7
8
- Answer choicesTagsAnswer choicesTags