Light

Question 1

electromagnetic radiation that has properties of waves and particles

Answer 1

light

Question 2

boucing off of light

Answer 2

reflection

Question 3

occurs when the reflective surface is very smooth

Answer 3

specular reflection

Question 4

occurs when light hits a rough surface

Answer 4

doffuse reflection

Question 5

the transfer of energy carried by the light waves to the particles of matter

Answer 5

absorption

Question 6

dispersal of reflected light

Answer 6

diffusion

Question 7

reflection of light by particles

Answer 7

scattering

Question 8

TRUE OR FALSE: The law of reflection is strictly observed when the reflecting surface is rough

Answer 8

False, it’s smooth

Question 9

bending of light

Answer 9

refraction

Question 10

is the effect associated with the separation of light into colors by a prism

Answer 10

dispersion

Question 11

is a space in which there is no matter, or in which the pressure is so low that particles in it do not effect any processes being carried on there

Answer 11

vacuum

Question 12

phenomenon wherein the incident rays striking the boundary of two media are reflected back into the first medium and the bounding surface acts like a perfect reflector

Answer 12

total internal reflection

Question 13

TRUE OR FALSE: The angle of refraction increases as the angle of incidence increases

Answer 13

True

Question 14

formed when light strikes a reflecting surface such as a mirror or a lens

Answer 14

images

Question 15

occur when light rays actually intersect at the image, making them appear inverted or upside down

Answer 15

real images

Question 16

occur when light rays do not meet at the image, but because the eye projects light rays backwards, we are tricked into seeing an image that is erect or right side up

Answer 16

virtual images

Question 17

two basic types of mirrors

Answer 17

flat and spherical

Question 18

consists of a flat, two dimensional surface that reflects the light coming from or reflecting off another object

Answer 18

plane mirrors

Question 19

TRUE OR FALSE: the image is always the same distance behind the mirror as the object is in front of the mirror

Answer 19

true

Question 20

traces the path that light takes in order for an individual to view a point on the image of an object

Answer 20

ray diagram

Question 21

the center of the circle in which the mirror represents a small arc

Answer 21

center of curvature (C)

Question 22

the point where the parallel light rays converge

Answer 22

focus (F)

Question 23

the point where the mirror crosses the principal axis

Answer 23

vertex (V)

Question 24

a line drawn through the vertex, focus, and the center of curvature of the mirror upon which the object rests

Answer 24

principal axis

Question 25

the distance from the focus to the vertex of the mirror

Answer 25

focal length (f)

Question 26

the distance from the center of curvature to the vertex of the mirror; it corresponds to the radius of the circle

Answer 26

radius of curvature

Question 27

to be able to describe the location, size, orientation, and the type of image formed by concave of a concave mirror, the technique used is

Answer 27

ray diagramming

Question 28

is the ray that leaves a point on an object facing the mirror parallel to the principal axis

Answer 28

principal ray

Question 29

is the ray that leaves the same point on the object and immediately passes through the focal point, hitting the mirror and reflecting parallel to the principal axis

Answer 29

focal point

Question 30

ray that leaves the same point on the object and passes through the center of curvature of the mirror

Answer 30

chief ray

Question 31

is the process of making something looks bigger than it is

Answer 31

magnification

Question 32

lens that is thicker in the middle

Answer 32

converging/convex lens

Question 33

lens that is thicker on the sides

Answer 33

diverging/concave lens

Question 34

formed when light refracts as it encounters a boundary between two different materials

Answer 34

images

Question 35

part of a lens that is the line joining the centers of curvature of its surface

Answer 35

principal axis

Question 36

a shaped transparent material that refracts light to create an image

Answer 36

lens

Question 37

are devices that extend human vision through the use of mirrors and lenses to reflect and refract light and form images

Answer 37

optical instruments

Question 38

the word camera evolves from a latin term meaning

Answer 38

dark chamber

Question 39

TRUE OR FALSE: the mechanisms of a camera are based on the fundamentals of refraction

Answer 39

False, reflection

Question 40

is an optical device that has the ability to make faraway objects appear much closer

Answer 40

telescope

Question 41

the ability of the telescope to gather or collect light is through ______

Answer 41

aperture

Question 42

telescope’s ability to enlarge an image depends of the combination of lenses used

Answer 42

telescope’s magnification

Question 43

most important aspect of any telescope

Answer 43

aperture

Question 44

it is the diameter of the telescope’s main optical component which can be either a lens or a mirror

Answer 44

aperture

Question 45

it determines the telescope’s light0gathering activity or how bright the image appears

Answer 45

aperture

Question 46

is composed of two identical mirrors mounted side by side aligned to point accurately in the same direction, allowing the viwer to use both eyes when viewing distant objects

Answer 46

binoculars

Question 47

is located at the big end of the binocular

Answer 47

objective lens assembly

Question 48

is the part that is placed by the eyes

Answer 48

eyepiece lens assembly

Question 49

is commonly known as the prism assembly, which insure that the image is properly oriented and not inverted or laterally reversed

Answer 49

image orientation correction