Light Energy

Front

What is light energy?

Back

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

Front

What happens to light when it passes from air into water?

Back

Light is refracted, meaning it bends as it enters a different medium.

Front

What is refraction?

Back

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

Front

What is reflection?

Back

Reflection is when light bounces off a surface.

Front

What does it mean if an object is opaque?

Back

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

Front

What is a medium in terms of light?

Back

A medium is a substance or material that light energy interacts with.

Front

What is the difference between transparent and translucent materials?

Back

Transparent materials allow all light to pass through, while translucent materials allow some light to pass but not enough to see clearly through them.

Front

What color do we see when all colors of light are absorbed?

Back

We see the color black when all colors of light are absorbed.

Front

How do lenses in eyeglasses help us see better?

Back

Lenses refract light waves to help focus images on our eyes.

Front

What is the speed of light?

Back

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