Physics

Question 1

What is light transferred by

Answer 1

Radiation

Question 2

Luminous VS non- luminous

Answer 2

Luminous objects produce their own light where as non luminous objects don’t

Question 3

Phosphorescence

Answer 3

The process of producing light by the absorption of UV light

Question 4

Incandescence

Answer 4

The production of light as a result of very high temperatures

Question 5

Chemiluminescence

Answer 5

The direct production of light as a result of a chemical reaction with little to no heat produced

Question 6

Incident Ray

Answer 6

The incoming ray that strikes a surface

Question 7

Reflected ray

Answer 7

The ray that bounces off a reflective surface

Question 8

The normal

Answer 8

The perpendicular line to the mirror surface

Question 9

Electric discharge

Answer 9

The process of producing might be passing an electric current through light

Question 10

What does SALT stand for

Answer 10

Salt Attitude Location Type

Question 11

What is the concave mirror shaped like

Answer 11

A mirror shaped like the part of the surface of a sphere in which the inner surface is reflective

Question 12

What’s a convex mirror shaped like

Answer 12

Convex mirror a mirror shaped like a part of a surface of a sphere where the outer surface is reflective

Question 13

Vertex

Answer 13

The point where the principal focus meets the mirror

Question 14

Refraction

Answer 14

The bending or change in direction of light when it travels from one medium into another

Question 15

When does refraction occur

Answer 15

Refraction occurs when the medium through which light is travelling changes

Question 16

If light goes from air 1.0 to water 1.6 does light bend towards or away from the medium

Answer 16

Away

Question 17

Total internal reflection is what…

Answer 17

When the angle of incidence is greater then the critical angle

Question 18

Apparent depth:

Answer 18

The depth that an object appears to be at due to the refraction of light in a transparent medium

Question 19

Mirage

Answer 19

A virtual image that forms as a result of refraction and total internal reflection in earth’s atmosphere

Question 20

What causes shimmering

Answer 20

It’s caused by light being refracted as it passes through air or different temperatures

Question 21

What’s the thin lens equation

Answer 21

1/f = 1/di + 1/do

Question 22

If there’s a positive Di is the image real or virtual

Answer 22

Positive

Question 23

If there’s a negative hi is the image upright or inverted

Answer 23

Inverted

Question 24

What’s the iris

Answer 24

The coloured part of the eye between the cornea and lens

Question 25

What’s the cornea

Answer 25

The outer layer of the eye. It lets light in

Question 26

What does the pupil do

Answer 26

Opening in the iris allows light to travel in

Question 27

Retina

Answer 27

Inner layer in the back of the eye contains photoreceptors that help you see

Question 28

Macula

Answer 28

Centre of retina responsible for what we see straight infront

Question 29

What’s hyperopia

Answer 29

Farsighted/ has difficulty seeing up close (corrected with converging lens)

Question 30

Myopia

Answer 30

Nearsighted has difficulty seeing far/ can be corrected with diverging lens

Question 31

What type of mirrors are the ones used in gas stations and parking garages

Answer 31

Convex

Question 32

What type of mirrors are make up mirrors

Answer 32

Concave