5th grade light

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What does it mean for an object to be opaque?

Back

An opaque object does not allow light to pass through it.

Front

What does it mean for an object to be translucent?

Back

A translucent object allows some light to pass through, but not enough to see clearly through it.

Front

What does it mean for an object to be transparent?

Back

A transparent object allows light to pass through it completely, so you can see clearly through it.

Front

Can light pass through a window?

Back

Yes, because glass is transparent.

Front

Can light pass through a brick wall?

Back

No, because bricks are opaque.

Front

Is a frosted glass window transparent, translucent, or opaque?

Back

A frosted glass window is translucent.

Front

What happens to light when it hits a mirror?

Back

Light reflects off a mirror.

Front

What is the speed of light?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second.

Front

What is refraction?

Back

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