Waves Unit Review

Comparing Wave A (black) to Wave B (green), Wave A has a

• higher frequency

• greater amplitude

• longer wavelength

• higher crest

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NGSS.MS-PS4-1

Box 1 on the diagram indicates which energy level of the wave

• Greatest energy

• 2nd greatest energy

• 3rd greatest energy

• least energy

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NGSS.MS-PS4-1

Box 2 on the diagram indicates which energy level of the wave

• Greatest energy

• 2nd greatest energy

• 3rd greatest energy

• least energy

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NGSS.MS-PS4-1

Box 3 on the diagram indicates which energy level of the wave

• Greatest energy

• 2nd greatest energy

• 3rd greatest energy

• least energy

Tags

NGSS.MS-PS4-1

Box 4 on the diagram indicates which energy level of the wave

• Greatest energy

• 2nd greatest energy

• 3rd greatest energy

• least energy

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Cassette tape record often include extra pops and noise. Digital recordings only include the actual recorded sound. Which statement is the best conclusion based on these facts?

• Digital recordings are require less space than the older method

• Digital recordings are less expensive to produce than the older method

• Digital recordings are more reliable than the older method

• Digital recordings are can be transmitted faster than the older method

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NGSS.MS-PS4-3

The graph indicates what about the relationship between wavelength and frequency?

• as wavelength decreases, frequency increases

• as wavelength decreases, frequency decreases

• as wavelength increases, frequency increases

• there is no relationship between wavelength and frequency

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NGSS.HS-PS4-1

What statement explains the changes from wave A to wave B?

• The energy decreases as the amplitude increases.

• The energy and amplitude increase.

• The energy and amplitude decrease.

• The energy increases as the amplitude decreases.

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NGSS.MS-PS4-1

Which of these is an advantage of digital storage of information over analog?

• Analog signals take up less bandwidth or storage space than digital

• Analog storage of information is continuous and capture a more pure sound

• Sound can be recorded either digitally or using analog techniques

• A copy of an analog file is never as good as its original

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NGSS.MS-PS4-3

From the list of communication devices, which would be considered analog: VCR, DVD player, Record player, Computer & CD player

• VCR and record player

• CD player and record player

• VCR and DVD player

• record player only

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NGSS.MS-PS4-3