Concave and Convex Lenses Review

Front

What is a convex lens?

Back

A convex lens is a lens that is thicker in the middle than at the edges, causing light rays that pass through it to converge or come together.

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NGSS.MS-PS4-2

Front

What is a concave lens?

Back

A concave lens is a lens that is thinner in the middle than at the edges, causing light rays that pass through it to diverge or spread apart.

Tags

NGSS.MS-PS4-2

Front

How does a convex lens affect light rays?

Back

A convex lens refracts light rays inward, causing them to converge to a focal point.

Tags

NGSS.MS-PS4-2

Front

How does a concave lens affect light rays?

Back

A concave lens refracts light rays outward, causing them to diverge.

Tags

NGSS.MS-PS4-2

Front

What is the focal point of a lens?

Back

The focal point is the point where light rays either converge (in a convex lens) or appear to diverge from (in a concave lens).

Front

What is the difference between real and virtual images?

Back

Real images are formed when light rays converge and can be projected on a screen, while virtual images are formed when light rays diverge and cannot be projected.

Front

What are some common applications of convex lenses?

Back

Convex lenses are used in magnifying glasses, cameras, and eyeglasses for farsightedness.

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What are some common applications of concave lenses?

Back

Concave lenses are used in eyeglasses for nearsightedness, laser pointers, and some types of flashlights.

Front

What happens to light rays when they pass through a concave lens?

Back

Light rays spread out or diverge after passing through a concave lens.

Tags

NGSS.MS-PS4-2

Front

What happens to light rays when they pass through a convex lens?

Back

Light rays converge to a point after passing through a convex lens.