Light and Matter Extra

Front

What is an opaque material?

Back

A material that allows no light to shine through, such as wood or cardboard.

Front

What happens to light when it passes from glass to air?

Back

The speed of light increases.

Front

Define reflection in terms of light.

Back

Reflection is when light rays bounce off an object.

Front

What do optic nerves carry signals to?

Back

Optic nerves carry signals of light, color, and dark from your eyes to your brain.

Front

Does water reflect and absorb light?

Back

True, water reflects and absorbs light.

Front

What is a transparent material?

Back

A material that allows light to pass through without significant scattering, such as clear glass.

Front

What is a translucent material?

Back

A material that allows some light to pass through but scatters it, such as frosted glass.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (or about 186,282 miles per second).

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the role of the retina in vision?

Back

The retina converts light into neural signals that are sent to the brain.