Waves and Sound Review

Letter B in the diagram is the wave

• amplitude

• crest

• trough

• wavelength

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The SIZE of a cycle (the amount that a cycle moves away from equilibrium) is called

• period

• cycle

• frequency

• amplitude

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NGSS.MS-PS4-1

Any disturbance that transmits energy through a medium or empty space is called a

• velocity

• medium

• wave

• frequency

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The top of a wave is called the

• crest

• trough

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NGSS.MS-PS4-1

What type of waves are sound waves?

• Transverse waves

• Longitudinal waves

• Surface waves

• Electromagnetic waves

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How does the medium affect the speed of sound?

• Sound travels faster in solids than in gases

• Sound travels faster in gases than in solids

• The medium does not affect the speed of sound

• Sound cannot travel through solids

Why do sound waves need a medium to travel?

• They need to bounce off objects.

• They need a medium to carry the vibration.

• They cannot travel in a vacuum.

• Both B and C are correct.

In which medium would sound travel the fastest?

• Air

• Water

• Steel

• Vacuum

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NGSS.MS-PS4-2

The BOTTOM of a wave is called the

• crest

• trough

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NGSS.MS-PS4-1

Which type of wave has oscillations that are perpendicular (up and down) to the direction of the wave motion?

• transverse

• longitudinal

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