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Flashcards in Science Deck (44)
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1
Q

T or F

Light can only be reflected from shiny any surfaces

A

F

2
Q

T or F

You can only see objects that give out light

A

F

3
Q

T or F

All objects can only be seen because they reflect light

A

F only some objects are able to reflect their own light

4
Q

T or F

You can see some objects because they give out light

A

T

5
Q

You can see some objects because they reflect light

T or F

A

T

6
Q

Why can you see yourself on the iPad?

A

You can yourself because of the light that is being reflected onto the surface and this allows you to see yourself

7
Q

Which angles are equal?

A

The angle of incidence and the angle of reflection

8
Q

How do you find the normal of a straight line

A
  1. Put the triangle ruler and put it at the end of the line and then draw the line in the middle 90 degrees giving the normal
9
Q

What is the law of reflection

A

Angle of incidence = angle of reflection

10
Q

What is the name of rays that are reflected in all different directions

A

Scattering

11
Q

Why can we see a duck behind the mirror

A

Are brown assumes lights travel in straight lines

12
Q

If we place a pen in a cup what happens

A

The pencil gets expand the second the pencil enters in there it is straight but when it’s put on the water it looks bent this is because the light is being reflected in different directions

13
Q

T or F

Angle of incidence = angle of refraction

A

FALSE

14
Q

What does light travel better in

A

Better in gas slower in solid

15
Q

Light traves through……..materials
If a ray of light travels from one material (air) into another (glass) it often………….
This called……….(bending of light)

A

Transparent , refracts , refraction

16
Q

The fisherman misses every time why

A

Because the fish looks like is there but it’s not because the light reflects off of jt

17
Q

Why do we think the fish is there when it’s not

A

Because are brain assumes that light always travels in straight which is not the case

18
Q

What is white light made up of

A

White light is made up of all multiple different colors when white light goes through the prism

19
Q
White light is a mixture of …………..
Each color of light is ………….. differently by the prism.
Dispersion = the …………….
of white light into a …………..
of colors…
A

Different colored light, refracted, splitting, spectrum

20
Q

Why does red have bigger waves then violet

A

Because violet is more refracted then red

21
Q

Red shirt or item only reflects ……. Light

A

Red

22
Q

Blue shirt or item only reflects ……. Light

A

Blue

23
Q

Green shirt or item only reflects ……. Light

A

Green

24
Q

What are the primary colors

A

Red

Blue green

25
Q

What is yellow made up of

A

Red and greeen

26
Q

What is magenta made up of

A

Red and blue

27
Q

What is cyan made up of

A

Green and blue

28
Q

Black objects…… reflect light at all

A

Don’t

29
Q

Through a red filter what color will go through

A

Red

30
Q

Through a green filter what color will go through

A

Green

31
Q

Through a blue filter what color will go through

A

Blue

32
Q

A magenta duck through red light becomes

A

Red

33
Q

A cyan duck through a red light becomes

A

Balck

34
Q

A yellow shirt through a red light becomes

A

Red

35
Q

A magenta shirt though blue light becomes

A

Blue

36
Q

A cyan shirt through a green light becomes

A

Green

37
Q

A blue shirt in a red light becomes

A

Black

38
Q

3 propriedades dom espalho

A

Inverted laterally
The right way up
Appers behind the mirror

39
Q

What is the normal

A

This is a line drawn at 90• to the mirror at the point where the ray mirror hits the mirror

40
Q

What is angle of incidence

A

Angle of incidence is the angle between the incidence ray and the normal

41
Q

What is the angle of reflection

A

Tu is is the angle between the reflected ray and the normal

42
Q

What is the incidence ray

A

This ray shows the light traveling towards the mirror

43
Q

What is the reflected ray

A

This shows the light traveling away from the mirror after it has been reflected

44
Q

What is scattering

A

Scattering happens when light is reflected from particles and uneven surfaces