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15 Cards in this Set

  • Front
  • Back

What is light?

Visible energy

Define a natural light source.

Light that isn't made by humans

What are the five sources of light?

Incandescent, Fluorescent, Phosphorescent, Chemiluminescent, And Bioluminescent

What is the first basic principal of light?

Light is a form of energy that you can see

Define reflection.

It's the process in which light hits a surface and bounces back.

What happens when light is reflected off a rough surface?

It bounces off in random directions.

Name the 5 parts of a reflection diagram.

incident ray, reflected ray, angle of incidence, angle of reflection, and the normal line

What are the 3 types of mirrors?

concave, convex, and plane

What is refraction?

When light bends.

What happens when light changes mediums?

It refracts.

which way does light bend if it is going into a denser medium?

Towards from the normal line.

Which way does light bend if it is going into a less dense medium?

Away from the normal line.

Define a double concave lens.

Thinner and flatter in the middle then around the edges.

Define a double convex lens.

Thicker in the middle then around the edges.

How does your eye form an image

The retina. If you have a long eye the image forms behind the eye making you near-sighted.


And if you have a short eye the image has not formed when it hits your eye.