Speed of Sound and Light

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.

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Roughly what is the speed of sound in steel?

• About 350 m/s

• About 1 500 m/s

• About 5000 m/s

• About 1800 m/s

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Which wave has the largest frequency?

• A

• B

• C

• None (same frequency)

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how fast do electromagnetic waves travel through the vacuum of space?

• they don't

• 250,000,000 m/s

• the speed of light

• 100mph

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what affects the speed of a wave?

• the medium it travels through

• amplitude

• plasma

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The longitudinal wave of pressure that is transmitted through any plastic material

• sound wave

• lightwave

• water wave

• crowd wave

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Sound travels FASTEST through which of these materials?

• Air

• Empty space

• Metal

• Water

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What is the speed of sound in air at room temperature?

• 343 m/s

• 299,792,458 m/s

• 1,500 m/s

• 1,234 m/s

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Which of the following statements is true about the speed of light?

• It is faster in water than in air.

• It is slower in a vacuum than in air.

• It is constant in a vacuum.

• It varies with the color of light.

How does temperature affect the speed of sound in air?

• Higher temperature increases speed.

• Higher temperature decreases speed.

• Temperature has no effect.

• Sound cannot travel in air.

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