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Green 121 > Study 121 > Flashcards

Study 121 Flashcards

1
Q

Kinetic energy

A

the movement of the molecules is known as kinetic energy

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2
Q

Temperature

A

the substance around us, the average amount of kinetic energy in something

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3
Q

Molecular

A

the particles around us

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4
Q

Liquid

A

molecules move a little more freely

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5
Q

Gas

A

molecules move very freely

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6
Q

Solid

A

matter vibrates

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7
Q

Matter

A

any object with a mass

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8
Q

Gas

A

molecules moving freely molecules

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9
Q

Radiation:

A

heat passes through energy

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10
Q

Convection

A

heat passes through liquid or gas

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11
Q

Conduction

A

heat passes through matter.

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12
Q

Independent Variable

A

the variable being changed

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13
Q

Dependent Variable

A

The Variable the variable being affected by the changed

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14
Q

Control group

A

The original test materials with their original properties(materials).

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15
Q

Constant

A

The variable that doesn’t change

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16
Q

Cold Energy

A

There is no such thing!

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17
Q

Constant

A

The variable that doesn’t change

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18
Q

Temperature

A

kinetic energy of the molecules of a substance

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19
Q

Hypothesis

A

: a educated guess

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20
Q

Conductor

A

a movement of heat through a material

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21
Q

Volume

A

The quantity of 3-dimensional space enclosed by a closed surface

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22
Q

Insulator

A

keeps heat in and keeps cold out

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23
Q

Radiation

A

Heat as waves move through the air and don’t need any matter.

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24
Q

Conduction

A

The movement of heat throw another object.

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25
Q

Matter

A

Has mass and takes up space

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26
Q

Conduction

A

heat moves through

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27
Q

Experimental group

A

the group you choose to change

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28
Q

control group

A

the starting experiment without the change

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29
Q

Kinetic Theory:

A

the theory of kinetic energy

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30
Q

The independent variable

A

the variable you can decide to change or the x axis

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31
Q

The dependent variable

A

responding variable that changes because of the independent variable on the y axis)

32
Q

Key on a graph

A

the key explains the symbols on a graph

33
Q

Thermometer:

A

a tool used to measure the kinetic energy of matter

34
Q

Constant

A

a variable that stays the same

35
Q

Conduction

A

Heat moves through matter

36
Q

Convection

A

Heated fluid (gas/liquid) moves

37
Q

Radiation

A

Energy (heat) moves by waves (no matter needed)

38
Q

Kinetic Theory

A
  1. A gas consists of molecules in constant random motion.
  2. Gas molecules influence each other only by collision; they exert no other forces on each other.
  3. All collisions between gas molecules are perfectly elastic; all kinetic energy is conserved.
  4. The volume actually occupied by the molecules of a gas is negligibly small; the vast majority of the volume of the gas is empty space through which the gas molecules are moving.
39
Q

Conservation of Energy

A

The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another.

40
Q

What is the independent variable?

A

A variable that we choose to Change.

41
Q

What is the Dependent Variable?

A

A variable that is effected, that we measure

42
Q

What is the Constant?

A

A variable that is not changing (stays the same in control and in all the trials)

43
Q

What is the Experimental group?

A

A group were it has an independent variable that changes a factor.

44
Q

What is the Control Group?

A

A group were it does NOT have an independent variable and that has a constant factor. The original

45
Q

True or False:

Cold exists

A

False

46
Q

True or False:

Solid is idle but vibrating

A

True

47
Q

What State of matter has more kinetic energy than others?

A

Gas

48
Q

What state of matter has a decent kinetic energy

A

Liquid

49
Q

What State of matter has almost no kinetic energy and vibrates?

A

Solid

50
Q

True or False: Heat changes kinetic energy

A

True

51
Q

True or false: low heat decreases kinetic energy

A

True

52
Q

True or false: low heat increases kinetic energy

A

Fals

53
Q

What matter slides past other molecules and not fixed?

A

Liquid

54
Q

What is Energy Absorption?

A

Energy Absorption :the ability of materials to absorb impact energy by means of controlled failure mechanisms and modes

55
Q

What matter is moving freely?

A

GAS

56
Q

What matter is tightly packed, fixed, and only vibrates?

A

SOLID

57
Q

What is Radiation?

A

Heated air molecules moving in waves. Can move through space

58
Q

What is Convection?

A

Heat movement fluids that are circling constantly.

59
Q

What is the Independent Variable?

A

The variable chosen to change (X axis) To see what changes after the experiment.

60
Q

What is the Dependent Variable?

A

The variable that changes based on the independent variable (Y axis)

61
Q

What is the Constant?

A

the things that don’t change between the control and the experimental group.

62
Q

What is Kinetic Energy?

A

the amount of molecular movement in one place.

63
Q

What is Temperature?

A

The average amount of kinetic energy in a substance

64
Q

What is Conduction?

A

Heat transferred by direct contact (touch)

65
Q

As heat is added to matter. What happens to the molecules?

A

They speed up and move further apart

66
Q

True or False: An independent variable changes based on the dependent variable

A

False

67
Q

If I did an experiment with flowers and used the exact same pots and added different amounts of water and would see how tall they would grow what would be the constant, dependent variable, and independent variable?

A

Constant: The pots
Dependent Variable: How tall they would grow
Independent Variable: The different amounts of water

68
Q

How does going to bed later affect how tired I am in the morning? What would the control be?

A

Control: Seeing how tired I am when I go to bed at my normal time to use as a comparison.

69
Q

How does going to bed later affect how tired I am in the morning? What would the independent variable be?

A

The time I go to bed

70
Q

What State of matter has more kinetic energy than others?

A

Gas

71
Q

What is Radiation?

A

Heated air molecules moving in waves. Can move through space

72
Q

What is the Experimental group?

A

A group were it has an independent variable that changes a factor.

73
Q

True or False: Heat decreases kinetic energy

A

False

74
Q

True or false: low heat increases kinetic energy

A

True

75
Q

True or False:

Solid is idle but vibrating

A

True

76
Q

What matter is tightly packed, fixed, and only vibrates?

A

Solid

77
Q

True or False: Heat changes kinetic energy

A

True

Green 121 (1 decks)

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