Physics Lenses Quiz

The bending of light as it passes from one material to another.

The point where light rays meet after passing through a lens.

A lens that is thicker in the middle than at the edges.

A lens that is thinner in the middle than at the edges.

Light slows down and changes direction when passing through different materials like a glass lens.

Thinner in the middle than at the edges; causes light rays to diverge (spread out).

Spreading apart.

Coming together.

Also known as a convex lens.

Images formed by are inverted and usually smaller, though this can vary based on the object and lens distance.

A concave lens causes light rays to diverge, or spread out.

A concave lens is used in a flashlight to produce a wider beam of light.

A convex lens is used in a peephole to produce an upright and small image of the object.

An overhead projector uses a convex lens to produce an enlarged image of an object.

A person who has difficulty seeing distant objects needs a convex lens.

The iris is the colored part of the eye that controls the amount of light entering.

The pupil is the black circular opening in the center of the iris that allows light to enter.

A magnifying glass utilizes a convex lens to enlarge objects.

Hyperopia, also known as farsightedness, is a vision defect where people have difficulty seeing near objects.

When an object is placed at the focal point of a convex lens, no image is produced because the rays of light become parallel after passing through the lens.

A virtual, enlarged, and upright image is formed.

A real image is formed when actual light rays converge at a point, and it can be projected onto a screen.

The human eye has a convex lens.

A real image is formed when light rays intersect.

The image will become smaller.

The distance to a virtual image is negative.

Lenses work because of refraction, the bending of light as it passes through different materials like a lens.