Unit 4 Review

A mass attached to a spring vibrates back and forth. At the equilibrium position, the

• acceleration reaches a maximum.
• velocity reaches a maximum.
• net force reaches a maximum.
• velocity reaches zero.

The angle between the string of a pendulum at its equilibrium position and at its maximum displacement is the pendulum’s

• period.
• frequency.
• vibration.
• amplitude.

For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion?

• amplitude
• period
• frequency
• revolution

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NGSS.HS-PS4-1

For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time?

• amplitude
• period
• frequency
• revolution

How are frequency and period related in simple harmonic motion?

• They are directly related.
• They are inversely related.
• Their sum is constant.
• Both measure the number of cycles per unit of time.

A wave travels through a medium. As the wave passes, the particles of the medium vibrate in a direction perpendicular to the direction of the wave’s motion. The wave is

• longitudinal.
• a pulse.
• electromagnetic.
• transverse.

Each compression in the waveform of the longitudinal wave shown above corresponds to what feature of the transverse wave below it?

• wavelength
• crests
• troughs
• amplitude

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NGSS.HS-PS4-1

Each stretched region in the waveform of the longitudinal wave shown above corresponds to what feature of the transverse wave below it?

• wavelength
• crests
• troughs
• amplitude

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NGSS.HS-PS4-1

Which of the following most affects the wavelength of a mechanical wave moving through a medium? Assume that the frequency of the wave remains constant.

• nature of the medium
• amplitude
• height of a crest
• energy carried by the wave

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NGSS.HS-PS4-1

Two waves traveling in opposite directions on a rope meet and undergo complete destructive interference. Which of the following best describes the waves a moment after the waves meet and coincide?

• The waves no longer exist.
• The waves continue unchanged.
• The waves reflect and travel backward.
• A single wave continues along the rope.