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- 1. Multiple Choice
The changing pitch of police car's siren as it moves by you is an example of
speed of sound
doppler effect
resonance
intensity
- 2. Multiple Choice
Sound travels as a ____________ wave.
transverse
electromagnetic
longitudinal
gamma
- 3. Multiple Choice
Which term refers to how high or low a sound seems to a person?
intensity
reflection
volume
pitch
- 4. Multiple Choice
Dolphins can hear sounds with frequencies as high as 200,000 Hz. These sound waves are too high for the human ear and are called
interference
doppler waves
resonance
ultrasound waves
- 5. Multiple Choice
A system of detecting objects under water using reflected sound waves is
dissonance
sonar
acoustics
infrasound
- 6. Multiple Choice
The picture shows sound waves from a musical instrument. In which way is the sound wave in picture 1 different from the sound wave in picture 2?
it has a lower pitch
It has a lower volume
It has a greater amplitude
It has a higher frequency
- 7. Multiple Choice
Why can't sound waves travel through a vacuum?
There are no particles to travel through and vibrate.
It is not dense enough.
The frequency is too high.
Sound waves can travel through a vacuum.
- 8. Multiple Choice
Choose the unit that is used to measure how loud or powerful a sound is.
wavelength
decibel
longitudinal
sonar
- 9. Multiple Choice
Which wave represents the sound with the lowest pitch?
A
B
C
D
- 10. Multiple Choice
What happens when a wave reflects?
It bends as it enters a new medium.
It splits into smaller waves.
It bounces off the surface of a barrier.
It bends to move around a barrier.
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