It is a unit used to measure sound.

The bouncing back of sound

It is the ability to break white light into its components of colors.

It is a form of energy that we hear and feel.

Is a back and forth movement of an object.

It is the only energy that you can see.

Light can be reflected if it is directed towards a mirror.

Refraction is the bouncing back of light that strikes a clear surface.

The speed of the light remains the same even if it travels from one material to another.

The echo is the term used for the sound that is reflected back to its source.