Brainscape's Knowledge GenomeTM

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


See full index

7th Grade > Chapter 2 Study Guide: Using Light > Flashcards

Chapter 2 Study Guide: Using Light Flashcards

0
Q

Is defined as the ability to do work

A

Energy

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

A disturbance that transfers energy from place to place

A

Wave

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

The material through which a wave travels

A

Medium

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

A repeated back-and-forth or up-and-down motion

A

Vibration

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

The high point of a wave

A

Crest

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

The low point of a wave

A

Trough

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

The maximum distance that the particles of the medium carrying the wave move away from their rest postitions

A

Amplitude

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

The distance between two corresponding parts of a wave

A

Wavelength

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

The number of complete waves that pass a given point in a certain amount of time

A

Frequency

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

Is frequency measured in units

A

Hertz

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

Transfers electrical and magnetic energy

A

Electromagnetic Wave

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

The energy that is transferred through space by electromagnetic waves

A

Electromagnetic Radiation

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

The complete range of electromagnetic waves placed in order of increasing frequency

A

Electromagnetic Spectrum

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

Electromagnetic waves that you can see

A

Visible Light

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

Transmits most of the light that strikes it

A

Transparent

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

Scatters light as it passes through

A

Translucent

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

Reflects or absorbs all of the light that strikes it

A

Opaque

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Three colors that combine to make any other color

A

Primary Colors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Two primary colors that combine in equal amounts

A

Secondary Color

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Any two colors that combine to form white light

A

Complementary Colors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Colored substances that are used to color other materials

A

Pigments

21
Q

An object or wave bounces back off a surface through which it cannot pass

A

Reflection

22
Q

The angle of incidence equals the angle of reflection

A

Law of Reflection

23
Q

A flat sheet of glass that has a smooth, silver-colored coating on one side

A

Plane Mirror

24
Q

A copy of an object formed by reflected or refracted rays of light

A

Image

25
Q

The image you see in a plane mirror

A

Virtual Image

26
Q

A mirror with a surface that curves inward like the inside of a bowl

A

Concave Mirror

27
Q

An imaginary line that divides a mirror in half

A

Optical Axis

28
Q

The point at which rays parallel to the optical axis meet or converge

A

Focal Point

29
Q

Forms when rays meet

A

Real Image

30
Q

A mirror with a surface that curves outward

A

Convex Mirror

31
Q

Bending of light waves that are due to a change in speed

A

Refraction

32
Q

A curved piece of glass or other transparent material that refracts light

A

Lens

33
Q

Thicker in the center than at the edges (also known as a magnifying glass)

A

Convex Lens

34
Q

Thinner in the center than at the edges

A

Concave Lens

35
Q

Where light enters the eye through the transparent front surface

A

Cornea

36
Q

An opening through which light enters the inside of the eye

A

Pupil

37
Q

A ring of muscle that contracts and expands to change the size of the pupil

A

Iris

38
Q

A layer of cells that lines the inside of the eyeball

A

Retina

39
Q

Contains a pigment that responds to small amounts of light

A

Rods

40
Q

Respond to color

A

Cones

41
Q

Can see nearby things clearly, but objects at a distance are blurred

A

Nearsighted

42
Q

Can see distant objects clearly, but nearby objects appear blurry

A

Farsighted

43
Q

Uses one or more lenses to focus light, and film to record an image

A

Camera

44
Q

Forms enlarged images of distant objects

A

Telescope

45
Q

Consists of two convex lenses, one at each end of a tube

A

Refracting Telescope

46
Q

Gathers the light coming from an object and focuses the rays to form a real image

A

Objective

47
Q

Magnifies the image so you can see it clearly

A

Eyepiece

48
Q

Uses a large, concave mirror to gather light

A

Reflecting Telescope

49
Q

An optical tool that makes small objects look larger

A

Microscope

50
Q

Use a beam of tiny particles called electrons instead of light to produce a magnified image

A

Electron Microscope

51
Q

Sends signals from the retina to the brain

A

Optic Nerve

7th Grade (13 decks)

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