Physics Study Guide

The loudness of a sound is most closely related to its

• speed

• frequency

• wavelength

• intensity

The source of every sound is something that is

• vibrating

• moving

• accelerating

• undergoing simple harmonic motion

• a net emitter of energy

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A high-frequency sound source produces a high

• speed

• amplitude

• pitch

• all of the above

• none of the above

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  A wiggle in time is a

• vibration

• wave

• both of these

• neither of these

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   If the mass of an object were doubled while its volume remained the same, its density would

• be half

• double

• stay the same

• be four times as great

Which of these relate most to the loudness of sound?

• wavelength

• frequency

• speed

• amplitude

• all of the above

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A wave of frequency of 1000 hertz vibrates at

• less than 1000 cycles per second

• 1000 cycles per second

• more than 1000 cycles per second

• none of the above

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    Sound travels fastest in

• air

• water

• steel

• a vacuum

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  The speed of sound depends on

• its frequency

• its amplitude

• the medium in which it travels

• all of the above

• none of the above

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In choosing between sound waves and radio waves, which has the greater speed?

• sound wave

• radio wave

• both the same

• need more information

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