Lenses

Front

What does the word 'converging' mean?

Back

To come together.

Front

___ is when light travels through a material and bends.

Back

Refraction.

Front

What type of image is formed when rays of light actually intersect?

Back

Real.

Front

How does light travel?

Back

In a straight line.

Front

Which type of lens is shown?

Back

Convex.

Front

What is a concave lens?

Back

A lens that diverges light rays that are initially parallel.

Front

What is a convex lens?

Back

A lens that converges light rays that are initially parallel.

Front

What is the focal point of a lens?

Back

The point where light rays converge or appear to diverge.

Front

What is the difference between real and virtual images?

Back

Real images can be projected on a screen; virtual images cannot.

Front

What is the principle of refraction?

Back

Light changes direction when it passes from one medium to another.