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Science
9th -
11thgrade
Waves part 2 - Sound, EM, Speed in sound/light & Doppler Effect
12 questions
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- 1. Multiple Choice
Under the Doppler effect, as the source of sound moves away from the observer (you) what happens to the frequency of the sound?
The volume gets higher
The pitch gets lower
The pitch stays the same
The pitch gets higher
- 2. Multiple Choice
In what material will sound travel the fastest?
Liquids like water
Gases like air
Solids like steel
In a vacuum like space
- 3. Multiple Choice
Of the choices listed below, which type of electromagnetic wave would be the most dangerous in terms of energy carried?
infrared waves
visible light
ultraviolet rays
radio waves
- 4. Multiple Choice
An ambulance playing its siren is moving toward Bob and away from Becky. Describe how the pitch will sound to Bob compared to how the ambulance driver hears it.
The pitch will be higher
The pitch will be the same
The pitch will be lower
- 5. Multiple Choice
Light is an electromagnetic wave that travels fastest in
a solid
water
a vacuum
air
- 6. Multiple Choice
Sound waves are what type of waves
Electromagnetic
Transverse
Longitudinal
Ocean
- 7. Multiple Choice
The speed of light is faster than the speed of sound.
True
False
- 8. Multiple Choice
The Doppler Effect measures the change in loudness of sound.
True
False
- 9. Multiple Choice
A big space movie shows a spaceship exploding and the passengers on the nearby spaceship see and hear the massive explosion.
This makes perfect sense under physics.
This is nonsense. Sound can't travel through the vacuum of space.
This is nonsense. There is no way they can see the explosion in space.
- 10. Multiple Choice
What is the most dangerous electromagnetic wave (on Earth)?
Microwaves
Ultraviolet rays
Infrared waves
Gamma Rays
- 11. Multiple Choice
The Doppler Effect only occurs with sound waves.
True
False
- 12. Multiple Choice
What happens to the energy of a wave as the frequency increases?
Energy increases
Energy stays the same
Energy decreases
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