WAVES Unit Test Review

This is a sound wave. The areas of low pressure, like A, are called

• Compressions

• Rarefactions

• Wavelengths

• Frequencies

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A low engine rumble quickly turns into a high-pitched squeal of brakes. Which waves show that happening?

• A

• B

• C

• D

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Highness or lowness of a sound. This changes as the wave's frequency changes.

• Loudness

• Amplitude

• Pitch

• Equilibrium

What we call the loudness (or volume) of a sound. It's measured in decibels.

• Pitch

• Frequency

• Wavelength

• Amplitude

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Wave B has

• a bigger amplitude and shorter wavelength.

• a shorter amplitude and longer wavelength.

• a bigger amplitude and wavelength.

• a shorter amplitude and wavelength.

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What happens when the sound changes suddenly?

• Both the amplitude and wavelength of the wave increase.

• Both the amplitude and wavelength of the wave decrease.

• The amplitude of the wave increases while the wavelength decreases.

• The amplitude of the wave decreases while the wavelength increases.

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Which of these can be used to send a signals to satellites orbiting the earth in space?

• Sound waves

• Radio waves

• Both sound and radio waves

• Neither one

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Which of these is not classified as a mechanical wave?

• Earthquake

• Light

• Sound

• Ocean waves

If a wave is moving energy left to right, and the particles of the medium are also moving left to right, what kind of wave is it?

• electromagnetic

• visible light

• longitudinal (compressional)

• transverse

Tags

NGSS.MS-PS4-1

When people at a stadium do "the wave," individual people stand up and sit down, and the wave travels sideways. The stadium wave is a _____ wave, because the "particles" of the medium are moving _____ to the wave direction.

• transverse, parallel

• transverse, perpendicular

• longitudinal, parallel

• longitudinal, perpendicular