Unit 6 and 7 Review

Refer to the figure below, Letter a represents ----

• frequency

• wavelength

• amplitude

• speed

Tags

NGSS.MS-PS4-1

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

• It would have a lower pitch.

• It would have a higher pitch.

• It would get softer.

• It would get louder.

Tags

NGSS.MS-PS4-1

Refer to the figure below, Letter b represents ----

• Amplitude

• wavelength

• frequency

• speed

Tags

NGSS.MS-PS4-1

If the frequency of a sound wave increased, what would happen to the sound made by this wave?

• It would have a lower pitch.

• It would have a higher pitch.

• It would get softer.

• It would get louder.

Frequency is expressed in ---

• Hertz (Hz)

• decibel (dB)

• cm/s

• seconds

Which one of the following is not a mechanical wave ?

• earthquake wave

• water wave

• sound wave

• electromagnetic wave

When wavelength decreases, what would happen to the frequency and energy of the wave?

• Both frequency and energy decrease..

• Both frequency and energy increase.

• Frequency increases but energy decreases.

• Frequency decreases but energy increases.

Tags

NGSS.HS-PS4-1

Refer to the figure below, what type of navigation system is the boat using ?

• GPS

• Radio

• Sonar

• Gamma Rays

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

The number of wavelengths that passes a given point is called---

• frequency

• wavelength

• amplitude

• speed

Tags

NGSS.HS-PS4-1

The wave interaction shown in the picture is caused by a change in ---

• amplitude

• frequency

• speed

• wavelength

Tags

NGSS.MS-PS4-2