Light And Sight

Question 1

How does light get to our eyes

Answer 1

Light reflects of an object then the reflected rays enter our eyes

Question 2

What is light

Answer 2

Light is a form of energy belonging to the electromagnetic spectrum

Question 3

What is energy

Answer 3

Energy cannot be created or destroyed it can only be transferred from one form to another

Question 4

What can energy be stored as? (Gecknt)

Answer 4

Gravitational potential,elastic potential,Chemical,kinetic,nuclear, thermal

Question 5

Define luminous

Answer 5

Generates its own light

Question 6

Define Non luminous

Answer 6

Object either reflects light that hits them or absorbs it

Question 7

Define reflection

Answer 7

When light bounces off an object

Question 8

How does light travel

Answer 8

In straight lines

Question 9

Does light need a medium to travel through?

Answer 9

No

Question 10

Which travels faster light or sound

Answer 10

Light

Question 11

How fast does light travel

Answer 11

300,000 kilometres per second

Question 12

Refraction

Answer 12

When light goes through an object but changes direction
It is the bending of lights from one medium into a medium with a different density

Question 13

Which way does light bend from Air to glass (denser medium)

Answer 13

Towards the normal

Question 14

What way does light bend from glass to air (less dense medium)

Answer 14

Away from the normal

Question 15

What are the Color’s of white light

Answer 15

ROYGBIV

Question 16

Biggest wave length

Answer 16

Red

Question 17

Smallest wavelength

Answer 17

Violet

Question 18

If waves are shorter…

Answer 18

Then more of them will pass by every second we say they have a higher frequency

Question 19

What does white and black objects do when light hits them

Answer 19

White objects reflect all wavelengths of light
Black objects absorb all wavelengths of light

Question 20

Define emit

Answer 20

Produce something

Question 21

Define transmitted

Answer 21

When light travels through a material

Question 22

Angle of incidence equals…

Answer 22

Angle of reflection

Question 23

Define refraction

Answer 23

When light is transmitted through a transparent medium but changes direction

Question 24

Which lens disperse light

Answer 24

Concave lens

Question 25

Light is what type of wave

Answer 25

Transverse

Question 26

What factors affect the speed of light

Answer 26

The density of the medium that the light wave is traveling through

Question 27

Convex lens

Answer 27

Cause parallel light rays to converge
Thiss means that the rays meet and form an image

Question 28

Concave lens

Answer 28

Concave lenses cause parallel light rays to diverge
This means that they move apart and do not actually cross.

Question 29

Which type of lens cause light rays to diverge

Answer 29

Concave lens

Question 30

Which type of lens causes light rays to converge

Answer 30

Convex lens

Question 31

Focus point (define)

Answer 31

The focus is the point where parallel light rays converge

Question 32

Dispersion

Answer 32

Spitting up white light into seven colors roygbiv

Question 33

White light from the sun…

Answer 33

White light from the sun is made up of multiple frequencies blended together when light is shine through a triangular prism it is separated in seven different colours (roygbiv