Light and Sound Study Guide

What happens to light when it is shined on a mirror?

• Refraction (light bends)

• Reflection (when light enters in one direction then bounces back to a single new direction)

Tags

NGSS.MS-PS4-2

What objects are translucent? Check ALL that apply.

• sunglasses

• stained glass

• frosted glass

• clear glass window

• lampshade

Tags

NGSS.MS-PS4-2

What is the best object to use to send messages and communicate in the dark?

• large hand-written signs

• flashlight to send signals

Check examples of refraction.

• a straw in a glass of water looks broken

• a person sees himself in a mirror

• polar bear looks cut in half when the top of its body is in the air and part of its body is in water behind clear glass

• white light is separated into colors of rainbow through a prism

Tags

NGSS.MS-PS4-2

When is the best time to use a loud siren? Check ALL that apply.

• to warn citizens when a police car is on a high-speed chase

• to warn other drivers if an ambulance has an emergency

• to warn people of a town that there's a tornado seen in the area

• tell people in a library to remain quiet

Tags

NGSS.MS-ESS3-2

Which of the following items are opaque? Check ALL that apply.

• human body

• wooden door

• clear glass window

• lampshade

• metal fencing

Which of the following items are transparent? Check ALL that apply.

• clear glass window

• clear glass jar

• glass of milk

Tags

NGSS.MS-PS4-2

Sound waves move through the 3 states of matter at the same rate.

• true

• false

Sound waves move faster through gases than they do through liquids.

• true

• false

Tags

NGSS.MS-PS4-2

Sound waves move faster through solids than they do through glass.

• true

• false

Tags

NGSS.MS-PS4-2