Chapter 14: Mirrors and Lenses 

A(n) ________ works by gathering and bending light with a lens.

________ causes blurry vision at all distances.

________: causes light rays to bend so that they converge.

When an object is farther from a(n) ________ than twice the focal length, the image that is formed is real, smaller, and upside down, or inverted.

________ also have an uneven curvature, canceling out the effect of an uneven cornea.

________: thinner in the middle and thicker at the edges.

A light placed at the ________ is reflected in a beam.

A(n) ________ is said to have a wide field of view.

________: an imaginary straight line drawn perpendicular to the surface of the mirror at its center.

A(n) ________ lens creates a larger image of an object than a wide- angle lens does.

The ________ is a type of reflecting telescope that uses two mirrors to collect and focus light to form an image.

________: An image which your brain perceives even though no light rays pass through it.

Reflecting telescopes use two mirrors to create a(n) ________, which then is magnified by a convex lens.

________: uses two convex lenses with relatively short focal lengths to magnify small, close objects.

________ are used in some types of eyeglasses and some telescopes.

A flashlight uses a(n) ________ to create a beam of light.

The reflected rays diverge and never meet, so the image formed by a(n) ________ is a virtual image.

When light rays travel toward the mirror parallel to the ________, they reflect through the focal point.

The ________ formed by a plane mirror is always upright and appears to be as far behind the mirror as the object is in front of it.

A(n) ________ uses two convex lenses to magnify small objects.

When ________ approach a convex lens traveling parallel to its optical axis, the rays are refracted toward the center of the lens.

________: A mirror that curves outward like the back of a spoon.

A(n) ________ has an optical axis and a focal point.

A(n) ________ uses a lens or a concave mirror that is much larger than your eye to gather more of the light from distant objects.

Light rays that hit a(n) ________ diverge, or spread apart, after they are reflected.

The image that is formed by a(n) ________ changes depending on where the object is located relative to the focal point of the mirror.

a flat, smooth mirror

An image which your brain perceives even though no light rays pass through it

the surface of a mirror is curved inward

an imaginary straight line drawn perpendicular to the surface of the mirror at its center

a point on the optical axis

The distance from the center of the mirror to the focal point

formed when light rays converge to form the image

A mirror that curves outward like the back of a spoon

thicker in the middle than at the edges

thinner in the middle and thicker at the edges

causes light rays to bend so that they converge

the inner lining of your eye

uses two convex lenses to gather and focus light from distant objects

uses a concave mirror, a plane mirror, and a convex lens to collect and focus light from distant objects

uses two convex lenses with relatively short focal lengths to magnify small, close objects