Brainscape's Knowledge GenomeTM

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


See full index

9th Grade > Chapters 1-8 > Flashcards

Chapters 1-8 Flashcards

1
Q

The general theory of relativity

A

The idea that gravity is the result of the geometry of space

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

Compressibility

A

The ability to squeeze and compact gases into smaller containers

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

Radiation

A

Heat transfer without matter

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

What type of mirror has the reflection on the inside of a sphere

A

Concave

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

Changing a gas into liquid is…

A

Condensation

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

Refraction

A

The bending of a wave

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

What radiation is mostly blocked by the ozone

A

UVB

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

Node

A

A dark fringe from light passing through a narrow slit

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

Quantum theory of light

A

Light is made up of electromagnetic waves AND particles

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

Archimedes’ principle

A

Buoyancy equals the weight of fluid displaced

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

The distance between two threads on a screw?

A

The output distance

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

What is the most important part of a heat pump?

A

Refrigerant

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

Iridescence

A

Colors produced by the reflection of light

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

Heinrich Hertz

A

First proved that invisible electromagnetic waves existed

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

What law relates force, mass, and acceleration

A

The second law of motion

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

What is it called when an excited atom releases a photon after a collision

A

Simulated emission

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

Heat of fusion

A

The heat required to change a mass of a solid without changing its temperature

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

Heat capacity

A

The amount of thermal energy needed to change an object’s temperature by a given amount

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

Fiber optics

A

Lasers transmitting signals in narrow glass tubes

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

The amount of disorder in a system?

A

Entropy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Acceleration

A

change in veloctiy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Hologram

A

3D image produced by lasers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

An arc of colored bands of light formed by raindrops

A

Rainbow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Photons

A

Bundles or packets of light energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Calorimeter

A

A devices that measures the heat involved in a physical or chemical change

26
Q

Mirage

A

Light rays bent from heat that causes an object to appear nearby

27
Q

Electromagnetic waves

A

Two waves made of two transverse waves oscillating at right angles to each other

28
Q

Infrared rays

A

Between microwaves and red visible light

29
Q

X rays

A

Higher than UV rays

30
Q

Gamma rays

A

Most energetic light waves capable of penetrating all substances

31
Q

Electromagnetic force is responsible for…

A

elastic potential energy

32
Q

Photoelectric effect

A

When light knocks electrons from the atoms of certain metals

33
Q

Absorption

A

Dissipating the energy of sound waves

34
Q

Subtractive primary colors

A

three pigments of colors that can be combined to make most other colors

35
Q

Radio waves

A

Used for communication

36
Q

Convex lens

A

Curves outwards and bends light inward

37
Q

An example of convection?

A

A fan blowing air into a house

38
Q

An example of conduction?

A

Something hot touching something else

39
Q

Time dilation

A

The apparent slowdown in time for a rapidly moving object

40
Q

What happens when water freezes?

A

It expands

41
Q

Kilogram

A

SI unit of mass

42
Q

Capillarity

A

Liquid rises above its own level in a thin tube

43
Q

Mass x velocity =

A

momentum

44
Q

White

A

A mixture of all colors

45
Q

Potential energy

A

is related to an object’s position

46
Q

True or False. The speed of an object would measure the same in space and on earth?

A

True

47
Q

Additive primary colors

A

Red, green, and blue

48
Q

Subtractive primary colors

A

Cyan, magenta, and yellow

49
Q

Reproducibility

A

Different scientists preforming the same experiment and reaching the same results

50
Q

Polarized light

A

All waves of light are aligned in the same direction

51
Q

Prism

A

Separates light into its component colors

52
Q

As altitude increase, atmospheric pressure…

A

Decreases

53
Q

Equivocation

A

Fallacy that uses a term with two different meansings

54
Q

Why does a knife blade become hot when sharpening?

A

First law of thermodynamics

55
Q

Reverberation

A

Multiple reflections of sound waves

56
Q

Why is a laser more intense than regular light?

A

The beam is more concentrated

57
Q

Longitudinal wave

A

The particles of the medium oscillate in the direction of wave motion

58
Q

Intensity

A

Strength of a sound wave

59
Q

Frequency

A

The number of waves that pass a given point

60
Q

Interval

A

Musical distance between two notes

61
Q

Pitch

A

Perceived highness or lowness of a sound

62
Q

Heat of vaporization

A

The change of energy involved in evaporation and condensation

9th Grade (3 decks)

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