Physics

Question 1

Prism

Answer 1

Transparent glass or plastic object with flat polished sides

Question 2

Visible light spectrum

Answer 2

R 
O
Y
G
B
I
V

Question 3

Bioluminescence

Answer 3

Ability of a plant or animal to produce light

Ex. Nemo fish

Question 4

Incandescence

Answer 4

Light produced by an object, such as metal, that is at very high temps tyre
Ex. Old inefficient lightbulbs

Question 5

Fluorescence

Answer 5

Light emitted by some substances when they’re exposed to electromagnetic radiation
Ex. Kind of a more compact version of incandescent

Question 6

Phosphorescence

Answer 6

Ability to store energy from a source of light and then emit it slowly over a long period
Ex. Glow in the dark

Question 7

Chemiluminescence

Answer 7

Light produced from a chemical reaction without a rise in tempature
Ex. Glow stick

Question 8

Triboluminescence

Answer 8

Light produced from friction

Ex. Rubbing diamonds

Question 9

Electric discharge

Answer 9

When an electric current passes through the air or another gas
Ex. Lightning

Question 10

Law of reflection

Answer 10

Angle of reflection=angle of incidence (which r on opposite sides of the normal)
Incident Ray and normal and reflected Ray all on same flat surface

Question 11

Normal
Incident Ray
Angle of incidence (i)
Reflected Ray
Angle of reflection (r)

Answer 11

Line perpendicular to a surface such as a mirror
Light Ray travelling towards the mirror
Angle between incident Ray and normal
Light Ray that bounced off reflected surface
Angle between reflected Ray and normal

Question 12

Plane mirror

LOST

Answer 12

A regular flat mirror that reflects exact images 
Behind
Up right
Same
Virtual

Question 13

Concave/Converging mirrors (uses)

Answer 13

Flashlight
Telescope
Cosmetic mirrors
Headlights

Question 14

Convex/diverging mirrors (uses)

Answer 14

Security, side view mirror

Question 15

Refraction
Medium
Dispersion

Answer 15

Bending of light rays as they pass from one medium to another
Material that light is passing through
Refreshing of white light in separate wavelengths

Question 16

Concave lens
Convex lens
(Uses)

Answer 16

Glasses telescopes

Camera projectors magnifying glass reading glasses

Question 17

Cornea

Answer 17

Transparent layer of tissue in the outer surface of the eye covering the iris and pupil, refracts light entering eye

Question 18

Iris

Answer 18

Circular colour band of muscle in the eye that controls size of the pupil and the amount of light that enters the eye

Question 19

Pupil

Answer 19

Transparent area in centre of the eye that allows light to pass into eye

Question 20

Lens

Answer 20

Curved transparent object that is smooth and regular shapes so that when light strikes it the light refracts in a predictable and useful way

Question 21

Retina

Answer 21

Inner lining at the back of the eye that acts as a projection screen for light rays entering eye

Question 22

Optic nerve

Answer 22

Connects eye to brain

Question 23

Far sighted

Answer 23

Able to see far but not clearly

Question 24

Near sighted

Answer 24

Able to see far but not close things

Question 25

Astigmatism

Answer 25

When the eye is unable to form a clear image because of an irregularly shaped cornea or lens