Light and Sound Unit Review

A mirror allows most light to pass through it.

• True

• False

Tags

NGSS.MS-PS4-2

Sound does not travel at the same speed through all materials.

• True

• False

Tags

NGSS.MS-PS4-2

Sunglasses are an example of an opaque object.

• True

• False

Tags

NGSS.MS-PS4-2

Dolphins and bats are capable of using echolocation.

• True

• False

A lens can refract, or bend, light as it passes through it.

• True

• False

Sonar works by bouncing sound waves off an object and measuring the time the echos take to return.

• True

• False

All materials reflect the same amount of light.

• True

• False

Tags

NGSS.MS-PS4-2

Fred's pet bird makes a very high pitched, loud sound. What can you say about the vibrations of the bird's sound?

• The vibrations are big and slow.

• The vibrations are small and slow.

• The vibrations are big and fast.

• The vibrations are small and fast.

Tags

NGSS.MS-PS4-1

As you move away from a sound, ______________.

• pitch decreases

• loudness increases

• pitch increases

• loudness decreases

Light that is refracted is __________________.

• absorbed by an object.

• reflected back in the direction of its source.

• bent as it passes from one material to another.

• making a shadow

Tags

NGSS.MS-PS4-2