Optics

Question 1

____ - “Caves in” ][

Answer 1

Concave

Question 2

____ - “like a bubble” 0

Answer 2

Convex

Question 3

____ - Makes light rays come together

Answer 3

Converging

Question 4

____ - Makes light rays separate or spread out

Answer 4

Diverging

Question 5

A concave lens is also known as a ____ (converging/diverging) lens

Answer 5

Diverging lens

Question 6

A convex lens is also known as a _____ (converging/diverging) lens

Answer 6

Converging lens

Question 7

___ of curvature (C) - For a spherical lens (or mirror), this is the center of the circular arc of the lens (or mirror)

Answer 7

Center of curvature

Question 8

___ of curvature (R) - Distance from C to the lens (or mirror)

Answer 8

Radius of curvature

Question 9

___ ___ (F) - For a spherical lens (or mirror), this is the point halfway in between the center of curvature and the lens (or mirror) tells us how much a light ray bends

Answer 9

Focal point

Question 10

___ ___ (f) - Distance from F to the lens (or mirror), 2F = R

Answer 10

Focal length

Question 11

____ ___ - Perpendicular line drawn from the lens (or mirror) through the center of curvature, aka “the normal”

Answer 11

Principal Axis

Question 12

___ - The real light rays CONVERGE to form the image (can be projected. FOR MIRRORS, IMAGE FORMS ON THE SAME SIDE AS THE OBJECT. Ex: Movie projector, our eyes)

Answer 12

Real

Question 13

____ - The real light rays DIVERGE so virtual rays must be extended for convergence (can’t be projected. FOR MIRRORS, IMAGE FORMS ON THE OPPOSITE SIDE AS THE OBJECT. Ex: A magnifying glass)

Answer 13

Virtual

Question 14

Concave lenses are always (virtual/real)

Answer 14

Virtual

Question 15

Convex lenses are always (virtual/real). They’re technically both but mostly:

Answer 15

Real

Question 16

____ - Image stays pointing the same way as the object

Answer 16

Upright

Question 17

___ - Image is flipped upside down as compared to the object

Answer 17

Inverted

Question 18

____ - Image is larger than the original object

Answer 18

Enlarged

Question 19

____ - Image is smaller than the original object

Answer 19

Reduced

Question 20

Plane mirrors are always VIRTUAL and will always produce an (upright/inverted) image

Answer 20

Upright

Question 21

Real images are always (inverted/upright)

Answer 21

Inverted

Question 22

Virtual images are always (inverted/upright)

Answer 22

Upright

Question 23

___ ___ - Stretch and compress the lens to reduce or increase the focal length based on an objects distance

Answer 23

Ciliary Muscles

Question 24

___ - Light sensitive tissue with photoreceptors that perceive light and relay info to the brain

Answer 24

Retina

Question 25

The images formed on your retina is _____ but your brain interprets the image as being right side up

Answer 25

Inverted

Question 26

____ - (nearsightedness /can’t see from far away) occurs when light rays converge in front of the retina (is fixed with a CONCAVE DIVERGING lens)

Answer 26

Myopia

Question 27

____ - (farsightedness / can’t see close up) occurs when light rays converge behind the retina (is fixed with a CONVEX CONVERGING lens)

Answer 27

Hyperopia

Question 28

___-___ ___ - 1/f = 1/do + 1/di

Answer 28

Lens-maker equation

Question 29

f is the ___ ___

Answer 29

Focal length

Question 30

do is the ___ ____

Answer 30

Object distance

Question 31

di is the ___ ____

Answer 31

Image distance

Question 32

___ ___ - m = hi/ho = - di/do

Answer 32

Magnification equation

Question 33

m stands for ___

Answer 33

Magnification

Question 34

hi is the ___ ___

Answer 34

Image height

Question 35

ho is the ___ ____

Answer 35

Object height

Question 36

f “focal length” for a concave lens is ___ (meaning the focal point is in front of the lens)

Answer 36

Negative

Question 37

f “focal length” for a CONVEX lens is ___ (meaning the focal point is behind the lens)

Answer 37

Positive

Question 38

do “object distance” is always ___ (meaning the object is always in front of the lens)

Answer 38

Positive

Question 39

di “image distance” is ONLY positive if the image is ___ (meaning it is formed behind the lens)

Answer 39

Real

Question 40

di “image distance” is ONLY negative if the image is ____ (meaning it is formed in front of the lens)

Answer 40

Virtual

Question 41

m “magnification” is only negative if an image is ____ (meaning it is upside down compared to the original object. Since “di” is positive for real images “m” is always negative. Real images are always inverted)

Answer 41

Inverted

Question 42

m “magnification” is ONLY positive if an image is _____ (Meaning it faced the same was as the original object. Since “di” is negative for virtual images, “m” is always positive. Virtual images are always upright)

Answer 42

Upright

Question 43

If m=1 the image is ___

Answer 43

The same size

Question 44

If m>1 the image is ____

Answer 44

Enlarged

Question 45

If m<1 the image is ___

Answer 45

Reduced

Question 46

Mirrors work as the result of ____

Answer 46

Reflection

Question 47

Lenses work as the result of ____

Answer 47

Refraction

Question 48

As the object moves CLOSER to a CONVERGING (convex) lens, the image will (enlarge/reduce/stay the same). And the object will seem like it is getting ____

Answer 48

Enlarge Reduced

Question 49

The “BLUE” rays are the incident light rays which are the rays at the (points of the object/points of the image)

Answer 49

Points of the object (not the middle)

Question 50

The RED rays are the reflected/refracted rays that are at (points of the object/points of the image)

Answer 50

Points of the image (still not the middle)

Question 51

If the CONVEX lens is AT F (like as in 2F or F) there will be ___ ___ formed from parallel rays because they neither converge nor diverge

Answer 51

No image

Question 52

In a CONVEX lens if the object is in between F and the lens then the image will be ___ THE OBJECT and will be virtual, upright, and enlarged

Answer 52

BEHIND the object (on the same side of the lens)

Question 53

In a CONCAVE lens the top arrow will be moving forward and curving ___ once it reaches the concave lens. The dotted arrow behind it will be combined with it (/ like that)

Answer 53

Up

Question 54

In a CONCAVE lens the middle arrow will move downward and then move straight once it hits the concave lens. Dotted line will go in a straight line (—that throughout the thing)

Answer 54

lol

Question 55

In a CONCAVE lens the bottom line will go down till it hits the light and will continue to go downward. The dotted line will start from the top right and go down to the line (\)

Answer 55

yuh

Question 56

If the image and the object are in the same area of the lens (like both on the left or right side of it) then that will make the image ___

Answer 56

Virtual

Question 57

The closer the object moves to the lens, the ____ the image gets

Answer 57

Larger

Question 58

The image for an object placed in front of a plane mirror is Virtual Upright and the same size

Answer 58

lol