Unit 10: Reflection, Nova- The Elegant Universe, Tesla, and Electricity

Question 1

plane mirror

Answer 1

flat mirror

Question 2

concave mirror

Answer 2

a mirror that curves inward like a “cave”

Question 3

convex mirror

Answer 3

a mirror that curves outward

Question 4

incident ray

Answer 4

the reflection coming off an object and heading towards the mirror

Question 5

sighting line

Answer 5

when you have a straight line going through a specified object

Question 6

angle of incidence

Answer 6

the angle the reflection of an object hits a mirror at

Question 7

angle of reflection

Answer 7

the angle at which an object “bounces” off a mirror, equal to the angle of incidence

Question 8

orientation (inverted and erect)

Answer 8

how the image appears compared to the object

• inverted: upside down
• erect: right side up

Question 9

reduced

Answer 9

the image is smaller than the object

Question 10

enlarged

Answer 10

the image is bigger than the object

Question 11

same size

Answer 11

the image is the same size as the object

Question 12

center of curvature (C)

Answer 12

2F from the mirror

Question 13

focal point (F)

Answer 13

lines of reflection intersect

Question 14

optic axis

Answer 14

imaginary line through center of curve

Question 15

image (real and virtual)

Answer 15

light rays intersect to make a visible picture

• real image: an image projectable onto a piece of paper or a screen
• virtual image: image seen by looking into a mirror or lens