Unit 7: Waves (PS.6abcd)

The bat is using reflected sound waves to locate its prey. What is this application of sound called?

• Sonography

• Sonar

• Echolocation

• Radar

A student conducting an investigation wrote the hypothesis shown. Which could be the independent variable in the student’s investigation?

• Pitch of the rubber band

• Length of the rubber band

• Force of the pluck

• Thickness of the rubber band

Tags

NGSS.MS-PS4-2

The student is yelling towards the wall and sound waves are coming back to him. This is an example of—

• reflection

• refraction

• diffraction

• interference

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NGSS.MS-PS4-2

The property of sound waves seen in the image is called—

• interference

• resonance

• reflection

• diffraction

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NGSS.MS-PS4-2

If the wavelength decreases, what happens to the frequency and energy of a wave?

• The frequency would decrease and the energy would increase.

• Both the frequency and energy would increase.

• The frequency would increase and the energy would decrease.

• Both the frequency and energy would decrease.

Tags

NGSS.HS-PS4-1

A student was studying vibrations and recorded the data table shown. Which type of wave was the student studying?

• Transverse

• Perpendicular

• Longitudinal

• Radiant

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

If the amplitude of a longitudinal wave increased, what would happen to the sound made by the wave?

• It would get louder.

• It would get softer.

• It would have a higher pitch.

• It would have a lower pitch.

Tags

NGSS.MS-PS4-1

A group is making a model to show how radiant energy travels in a transverse wave. Which describes the best plan?

• Use a Slinky. Have one person push one end gently to make a pulse with compressions.

• Use a jump rope. Have one person move it up and down to create crests and troughs.

• Use a Slinky. Have one person push one end gently to make a pulse with rarefactions.

• Use a jump rope. Have one person move it to create slow back and forth vibrations.

Tags

NGSS.MS-PS4-2

Comparing the two mechanical waves shown, which statement is true?

• A. Wave A has a lower frequency and longer wavelength.

• B. Wave B has a lower frequency and shorter wavelength.

• C. Wave A has a higher frequency and shorter wavelength.

• D. Wave B has a higher frequency and longer wavelength.

Tags

NGSS.MS-PS4-1

In a longitudinal wave, particles of the medium vibrate ________ along the same path the wave travels.

• A. back and forth

• B. perpendicular

• C. up and down

• D. opposite

Tags

NGSS.MS-PS4-1