Waves and Sound Review

Which two animals use echolocation?

• bats and humans
• bats and dolphins
• dolphins and humans
• dolphins and butterflies

An ultrasound tech is trying to identify an object, but the screen of the machine is broken. Which statement best describes this situation?

• The generated sound wave will not be able to reflect off of the object.
• The sound wave will not be generated, so there will be no echoes received.
• The echoes will be made but will not be able to be received by the machine.
• The machine will not be able to process the received echoes into images.

Tags

NGSS.HS-PS4-5

What do digital signals turn sounds into?

• analog signals
• interference
• continuity
• zeros and ones

Tags

NGSS.MS-PS4-3

Which best describes the order of the technology used to transmit a sound through the radio?

• microphone → transmitter → microphone
• radio → transmitter → radio
• radio → transmitter → microphone
• microphone → transmitter → radio

Tags

NGSS.MS-PS4-2

Sound waves are produced when something is caused to

• reflect.
• vibrate.
• slow down.
• get warmer.

When sound is created, it travels to the ear through a

• compression.
• medium.
• rarefaction.
• surface.

Tags

NGSS.MS-PS4-2

Which statement can be made about waves A and B?

• Wave A has a lower amplitude than Wave B.
• Wave A has a higher amplitude than Wave B.
• Wave A has a lower frequency than Wave B.
• Wave A has a higher frequency than Wave B.

Tags

NGSS.MS-PS4-1

Sound Wave A is moving through a medium that is decreasing in temperature. Sound Wave B is moving from a liquid to a gas medium. Which statement can be made about both waves?

• They will speed up.

• They will increase the density of their medium.

• They will slow down.

• They will decrease the density of their medium.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which best describes what occurs when an object takes in a wave as the wave hits it?

• transmission
• absorption
• reflection
• refraction

Tags

NGSS.MS-PS4-2

What do diffraction and refraction have in common?

• They both involve interference.
• They both involve wave interactions.
• They both involve reflection.
• They both involve construction.

Tags

NGSS.MS-PS4-2