Waves

Which of the following best describes why particles in a wave's medium do NOT actually travel with the wave?

• The particles are too small to move

• The wave transfers energy through oscillation, not physical transport

• Waves always stop before particles can move far

• Only some types of waves prevent particle movement

If a wave has a frequency of 4 Hz, what is its period?

• 0.25 seconds

• 4 seconds

• 1 second

• 2 seconds

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NGSS.MS-PS4-1

Wave amplitude represents:

• The wave's total length

• The wave's speed

• The maximum energy transfer

• The number of wave cycles

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NGSS.MS-PS4-1

Which wave type requires a medium to propagate?

• Electromagnetic waves

• Mechanical waves

• Transverse waves

• Longitudinal waves

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NGSS.MS-PS4-2

When two waves combine and increase total amplitude, this is called:

• Wave cancellation

• Wave destruction

• Constructive interference

• Wave elimination

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NGSS.MS-PS4-1

The Doppler effect occurs when:

• Waves change color

• A sound source moves relative to an observer

• Waves reflect perfectly

• Waves pass through solid objects

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NGSS.MS-PS4-1

Which statement about wavelength is most accurate?

• Longer wavelengths always have higher energy

• Wavelength determines wave speed

• Wavelength measures wave amplitude

• Wavelength represents distance between similar wave points

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NGSS.HS-PS4-1

In a longitudinal wave, particle movement is:

• Circular

• Perpendicular to wave direction

• Parallel to wave direction

• Random and unpredictable

Wave velocity can be calculated by:

• Multiplying wavelength × frequency

• Dividing wavelength by frequency

• Adding wavelength and frequency

• Subtracting wavelength from frequency

Diffraction is most pronounced when:

• Wavelength is much smaller than obstacle size

• Wavelength is similar to obstacle size

• Waves have very high frequency

• Waves have low amplitude

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NGSS.HS-PS4-1