3rd Grade Energy Review

Front

What is reflection?

Back

The bouncing off of light rays from the surface of an object such as a mirror or other shiny surface.

Front

What do you need to make things move?

Back

A force.

Front

What is mechanical energy?

Back

The ability to do work or cause change.

Front

What does transparent mean?

Back

A material that allows light to pass through.

Front

What happens when light passes through water?

Back

It refracts.

Front

What is energy?

Back

The ability to do work or cause change.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing of light, while refraction is the bending of light as it passes through different materials.

Front

What is an example of a force?

Back

Pushing a swing or pulling a wagon.

Front

What is an example of mechanical energy?

Back

A moving car or a rolling ball.

Front

What is a transparent object?

Back

A clear glass window.