Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physics > Observing Light > Flashcards

Observing Light Flashcards

1
Q

Light

A

Something that stimulates sight and makes things visible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Luminous

A

Something which gives off light:
The sun
Stars
Lightning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Non-Luminous

A

Something which reflects light, but doesn’t give it off:
The moon
Glass
Metal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Rectilinear Propagation

A

When light travels in straight lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Shadows

A

a dark area or shape produced by a body coming between rays of light and a surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Large light sources…..

A

Produces shadows with penumbras/larger penumbras

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Small Light sources…..

A

Produce shadows with smaller penumbras or no penumbras

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Light can travel through….

A

vacuums - space is a vacuum, and we can see stars and stuff, so light can travel through it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Light can not…

A

escape a black hole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Sound can’t travel through….

A

Vacuums

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If a white light is shone onto a green ball, what colour would it be?

A

Green, because white is made up of RGB, and the green ball reflects green and absorbs red and blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A green light it shone onto a red ball, what would the colour be?

A

Black, because the light is giving out green, but the red ball only reflects red and it absorbs the other colours, so it would appear black.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

True or false, light refracts as it enters the prism

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is refraction?

A

The bending of light or change in direction of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Dispersion is when…

A

Light spilts into colours of the spectrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

why do we see the flash of lightning before we hear thunder?

A

Light travels faster than sound

17
Q

pinhole cameras

A

The image produced is shown upside-down

18
Q

Where would you put a film in a pinhole camera?

A

Behind the screen

19
Q

Umbra

A

total eclipse - the darkest part of a shadow

20
Q

Penumbra

A

partial eclipse - the less dark ish part - usually grey or fuzzy

21
Q

size and appearance, things that affect it

A

Distance between object and light-source
Distance between object and screen
Size of the object
Size of the screen

22
Q

Emission

A

Light given out

eg. A light bulb - it gives out light, but light doesn’t go through it and out the other side

23
Q

Transmission

A

When light passes through

eg. Glass - light goes through glass

24
Q

Reflection

A

When light bounces off an object

25
Q

Absorption

A

When light is taken in or stopped.

Physics (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions