Concave and Convex Lenses Review

Front

What is a concave lens?

Back

A concave lens is a lens that is curved inward on both sides, causing light rays to diverge when they pass through it.

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NGSS.MS-PS4-2

Front

What is a convex lens?

Back

A convex lens is a lens that is thicker in the center and thinner at the edges, causing light rays to converge when they pass through it.

Front

How do concave lenses affect light rays?

Back

Concave lenses spread out light rays, making them diverge.

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NGSS.MS-PS4-2

Front

How do convex lenses affect light rays?

Back

Convex lenses bring light rays together, causing them to converge.

Front

What is the primary use of concave lenses in eyeglasses?

Back

Concave lenses are used in eyeglasses to correct nearsightedness by diverging light rays before they enter the eye.

Front

What is the primary use of convex lenses in eyeglasses?

Back

Convex lenses are used in eyeglasses to correct farsightedness by converging light rays before they enter the eye.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, caused by a change in its speed.

Tags

NGSS.MS-PS4-2

Front

What is reflection?

Back

Reflection is the bouncing back of light rays when they hit a surface.

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NGSS.MS-PS4-2

Front

What is the focal point of a lens?

Back

The focal point is the point where light rays converge or appear to diverge after passing through a lens.

Front

What is the difference between real and virtual images?

Back

Real images can be projected on a screen and are formed by converging light rays, while virtual images cannot be projected and are formed by diverging light rays.

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NGSS.MS-PS4-2