Energy and Light Flashcard

Front

Name the nine different types of energy.

Back

Kinetic, sound, light, heat, electrical, chemical, nuclear, gravitational, and elastic

Front

State the energy transfer that happens in a battery.

Back

Chemical to electrical

Front

State the energy transfer that happens in an electric kettle.

Back

Electrical to heat

Front

What happens to the energy that is not useful?

Back

This energy is lost, normally as heat energy

Front

What 4 things can happen when light hits a boundary?

Back

Transmission, reflection, refraction, and absorption

Front

What is the law of reflection?

Back

The angle of incidence equals the angle of incidence

Front

What happens to light when it moves from air into glass?

Back

It slows down and refracts towards the normal.

Front

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

Back

It speeds up and refracts away from the normal

Front

Which lens is used to correct the eyesight of someone that is long-sighted?

Back

Convex

Front

Which lens is used to correct the eyesight of someone that is short-sighted?

Back

Concave