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- 1. Multiple ChoiceThe speed of sound at 20 degrees celcius is:331 m/s365 m/s621 m/s343 m/s
- 2. Multiple ChoiceSound does not travel in space becauseSpace is too far away.There is no matter in space.Space is the final frontierSpace has planets.
- 3. Multiple ChoiceMatter that carries sound waves is called a _________lowhighmediumsurface
- 4. Multiple Choice
The ______ of a sound depends on the medium through which it's moving.
pitch
vibration
speed
loudness
- 5. Multiple Choice
Why does sound travel faster in solids than in liquids or gases.
They are harder.
The particles are closer together.
Solids have more energy.
Gases fill their container.
- 6. Multiple Choice
Which state of matter do sounds travel fastest in?
Solid
Liquid
Gas
Plasma
- 7. Multiple Choice
Roughly what is the speed of sound in air?
The speed of light.
About 10 m/s
About 340 m/s
About 1 500 m/s
- 8. Multiple Choice
Why does sound travel faster in solids than in liquids or gases.
They are harder.
Solids are more dense.
Solids have more energy.
Gases fill their container.
- 9. Multiple Choice
Calculate the speed of sound if a sound wave travels 680 m in 2 seconds.
1360 m/s
340 m/s
The speed of sound is always the same
250 m/s
- 10. Multiple Choice
A sound wave travels through air. It travels 3 400m at a speed of 340 m/s. How long does it take to get there?
102000 seconds
666 seconds
4.25 seconds
10 seconds
- 11. Multiple Choice
On which medium sound travels the slowest because the particles are spread out?
Solid
Liquid
Gas
- 12. Multiple ChoiceHow is sound produced?By the vibration of particlesBy the transfer of particles
- 13. Multiple ChoiceOne end of the rope is vibrated to produce a wave with a wavelength of .25 m. The Frequency of the wave is 3.0 Hz. What is the speed of the wave?3.00 m/s2.50 m/s.75 m/s1.25 m/s
- 14. Multiple ChoiceA tennis coach paces back and forth along the sideline 10 times in 2 minutes. The frequency of her pacing is5 Hz5 s0.08 Hz0.08 s
- 15. Multiple ChoiceA wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?500 m/s50 m/s5 m/s0.5 m/s
- 16. Multiple ChoiceA wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?25 m125 m5 m25 m/s
- 17. Multiple ChoiceA wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?34 m/s3400 Hz3400 m/s34 Hz
- 18. Multiple Choice
A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?
320.23 m/s
1391.3 hz
73.6 m/hz
73.6 m/s
- 19. Multiple ChoiceThe blue-throated hummingbird flaps its wings 300 times a minute. What is its frequency?5 hz300 hz300/60a lot?
- 20. Multiple Choice1. Frieda the fly flaps its wings back and forth 121 times each second. The period of the wing flapping is0.008 Hz0.008 s121 Hz121 s
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