Light Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Incandescent

A

Emits light when current passes through a filament

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

Fluorescent

A

Ultraviolet light emitted from plasma excites phosphors to produce light

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

LED

Light-emitting Diode

A

A small bulb containing a semiconductor that emits light when current is passed through it

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

Transparent

A

Allows light to pass

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

Translucent

A

Allows some light to pass and blocks other light

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

Opaque

A

Blocks all light

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

Umbra

A

Center of shadow, no light shining

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

Penumbra

A

Gray area around umbra, small amount of light shining

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

Prism

A

Glass that splits the colors of light

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

Retina

A

Back part of the eye

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

Rods

A

Special cells in the eye that detect light

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

Cones

A

Special cells in the eye that detect different colors

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

Reflection

A

Waves changing direction when it bounces off a surface that does not absorb it

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

Angle of incidence

A

Angles at which light approaches an object

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

Angle of Reflection

A

Angle at which light reflects off of an object

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

Plane mirror

A

Flat Mirror

17
Q

Virtual Image

A

Reflected image

18
Q

Concave Mirror

A

Surface is curved away from the imcoming light

19
Q

Convex Mirror

A

Surface is curved toward the incoming light

20
Q

Refraction

A

Bending of light

21
Q

Mirage

A

Image of the sky projected above the ground because of different densities of air

22
Q

Concave Lens

A

Surfaces curve toward center of the lens

23
Q

Convex Lens or Diverging Lens

A

Surfaces curve outward away form the center of the lens

24
Q

Focal Point or Principal Focus

A

Point at which light rays converge

25
Q

Focal Length

A

Distance from lens to focal point