Module 13 Terms

Question 1

Flat, Smooth mirror that reflects light to form upright, virtual images

Answer 1

Plane mirror

Question 2

an image formed by diverging light rays that is perceived by the brain, even though the light rays do not actually originate from the place where the image appears to be located.

Answer 2

Virtual image

Question 3

a reflective surface that curves inward and can magnify or reduce objects and can create real or virtual images

Answer 3

concave mirror

Question 4

imaginary straight line that is perpendicular to the surface at the center of a mirror or lens.

Answer 4

Optical Axis

Question 5

the point on the optical axis of a curved mirror or lens where light rays, that are initially parallel to the optical axis, converge to or diverge from after striking the mirror or lens

Answer 5

Focal Point

Question 6

distance from the center of a lens or mirror to the focal point.

Answer 6

Focal length

Question 7

an image that appears at a certain location as a result of rays of light converging at that location.

Answer 7

real image

Question 8

a reflective surface that curves outward, away from the viewer, and forms a reduced, upright, virtual image.

Answer 8

Convex Mirror

Question 9

a lens that is thicker at the edges than in the middle; causes light rays to diverge and forms reduced, upright, virtual images; often used in combination with other lenses.

Answer 9

concave lens

Question 10

transparent covering on the eyeball through which light enters the eye.

Answer 10

Cornea

Question 11

innermost layer of the eye that contains rods and cones.

Answer 11

Retina

Question 12

telescope that uses lenses to focus visible light.

Answer 12

refracting telescope

Question 13

telescope that uses mirrors to focus visible light.

Answer 13

reflecting telescope

Question 14

optical instrument that uses two convex lenses to magnify small, close objects

Answer 14

microscope