Lesson 4-7 Quizizz

All waves carry ________ as they travel from place to place.

• matter

• energy

• space

• compresswater

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The wavelength of a sound wave is 30m. The frequency is 7 Hz. What is the wave speed?

• 210 m/s

• 4.29 m/s

• 21 m/s

• .23 m/s

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NGSS.MS-PS4-2

What is the unit for frequency?

• 
  meters

• 
  decibels

• Hertz

• 
  meters/second

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The size of the disturbance a wave causes in its medium is called the _________. Height of the waves.

• amplitude

• wavelength

• frequency

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The distance between the start of one wave cycle and the start of the next wave cycle is called the _______. Length of the waves.

• amplitude

• frequency

• wavelength

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The number of wave cycles that pass a certain point in a given period of time; often expressed in wave cycles per second.

• amplitude

• frequency

• wavelength

The distance a wave moves in a given amount of time = _____.

• wave speed

• wave pulse

• frequency

• wavelength

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NGSS.HS-PS4-1

How are wavelength and frequency related (select all that apply)?

• As wavelength increases, frequency increases too

• As wavelength decreases, frequency decreases too

• As wavelength increases, frequency decreases

• As wavelength decreases, frequency increases

If 20 wave crests pass by you in 10 seconds, the frequency of the wave is __________.

• 1 cycle/second or 1 Hz

• 200 cycles/second or 100 Hz

• 10 cycles/second or 10 Hz

• 2 cycles/second or 2 Hz

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NGSS.MS-PS4-1

True or false: The amplitude of a wave can change without changing its wavelength.

• True

• False

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