Light Energy Post Test

You would like a window in your bathroom that would let light in but allows you to have your privacy. Which type of material would you use?

• Opaque

• Transparent

• Translucent

• Conductive

If all the colors are mixed together and absorbed, what color do they make?

• Black

• White

• Gray

• Brown

Which of the following travels the fastest?

• White Light

• A loud sound

• An explosion

• Sound in a solid

A beam of light hits a mirror at a 30 degree angle. At what angle does it leave the mirror?

• 45 degrees

• 60 degrees

• 30 degrees

• 90 degrees

When light from the sun hits at a tree, it cannot pass through it. What happens?

• The light is refracted and creates a shadow

• The light is reflected and creates a shadow.

• The light creates a shadow with out reflection or refraction.

• The person has to make finger puppets in the shadow.

A lens that can make objects bigger is called a

• Concave lens

• prism

• convex lens

• image

When light bounces off of a substances, what happens?

• The light is refracted.

• The light is absorbed

• The light is reflected

• The object disappears.

What do light waves do as they pass from one transparent material to another?

• Bend

• Disappear

• Reflect

• Bounce

The speed of light travels at

• 190,000 miles/second.

• 196,000 miles/second.

• 180,000 miles/second

• 186,000 miles/second

What type of lens curves outward?

• Concave lens

• Prism

• Convex lens

• image