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quizes > chemistry > Flashcards

chemistry Flashcards

1
Q

kinetic energy is the energy of

A

motion

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2
Q

the kinetic theory of matter states that all of the particles complete the sentence

A

made up matter are constantly in motion because the particles are in motion

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3
Q

the faster the particles are moving the less kinetic energy they have t or f

A

f

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4
Q

the particles in a solid

A

don’t move but they vibrate

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5
Q

the particles in a liquid

A

slide past eachother

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6
Q

the particles in a gas

A

the particles are apart from each other and move at high speeds

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7
Q

temperature is the

A

measurement of the average kinetic energy of all particles in a substance

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8
Q

cold

A

slow

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9
Q

hot

A

fast

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10
Q

degrees are not equally spaced units between three units fix this sentence

A

degrees are equally spaced units between two units

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11
Q

the space between degrees can not vary from scale to scale t or f

A

f

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12
Q

temperature is measured by a

A

thermometer

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13
Q

Celsius scale freeze

A

freezes at 0

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14
Q

Celsius scale boiling

A

100

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15
Q

Celsius scale room temp

A

20

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16
Q

Celsius scale body temp

A

37

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17
Q

Fahrenheit boiling

A

212

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18
Q

Fahrenheit freezing

A

32

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19
Q

Fahrenheit room temp

A

68

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20
Q

Fahrenheit body temp

A

98.6

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21
Q

Kelvin boils

A

373

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22
Q

kelvin freezes

A

273

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23
Q

kelvin room temp

A

293

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24
Q

kelvin body temp

A

310

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25
Q

how many units between the Celsius and Kevin scale boiling to freezing

A

100

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26
Q

there are 280 units from the

A

Fahrenheit scale

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27
Q

thermal energy is the total

A

kinetic energy of of all particles in a substance

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28
Q

thermal energy is measured by

A

joules

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29
Q

heat is the energy transferred from a

A

higher temp to a lower temp

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30
Q

one colorie is equal to the amount of energy needed to lower the temp t or f

A

f

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31
Q

heat is also measured by

A

joules

32
Q

calories are measured by a

A

calorimeter

33
Q

adding or removing hat fro a substance will

A

affect its temp and thermal energy

34
Q

conduction is the

A

transfer of energy as heat from a mustache to another substance thru direct contact

35
Q

a conductor is a material that transfers

A

heat very well

36
Q

example of a conductor

A

metal

37
Q

an insulator is a material that’s a good conductor t or f

A

false its a bad conductor

38
Q

examples of an insulator

A

wood plastic and paper

39
Q

convection is the transfer of heat by the movement of a

A

liquid and gas

40
Q

radiation is the

A

transfer of energy by electro magnetic waves

41
Q

examples of radiator

A

microave

42
Q

heat always flows from

A

hot to cold

43
Q

more particles =

A

more thermal energy

44
Q

in most substances when temp increases

A

density decreases

45
Q

the motion of convention is called

A

convection current

46
Q

a renewable source is an

A

energy source that can be renewed by nature

47
Q

a nonrenewable source is

A

a energy source that cannot be renewed or restored

48
Q

examples of renewable sources

A

crops trees sun wind

49
Q

examples of nonrenewable sources

A

uranium natural gas perytrooleum coal

50
Q

methane is the main componme of

A

natural gas

51
Q

disadvantages of natural gas

A

it proudu ces carbon dio

52
Q

coal is

A

a sedimentary rock that form by the remains of dead pants at the bottom of ancient swamps

53
Q

coal disadvantage

A

it destroys landscaped and pollutes water supplies

54
Q

whats rock oil

A

petroleum

55
Q

how does petroleum form

A

its forms by the remains of a single called aquatic organism that lived long ago

56
Q

disadvantages of petroleum

A

it can react with sunlight to produce smog a fog like layer of air pollution

57
Q

what ran formations do fossils go

A

first raw fossils are obtained by drilling or mining them the fossils are transported and later converted into usable;e energy

58
Q

each of these transportations

A

potentially affect the environment in its negative ways

59
Q

whats an alternative energy source

A

is a source that can be used instead of fossil fuels

60
Q

solar energy is not renewable t or f

A

f its renewable

61
Q

where does solar energy come from

A

the sun

62
Q

solar energy can be converted into

A

electrical energy

63
Q

nuclear energy is a renewable source t or f

A

f its not renewable

64
Q

why is nuclear energy not renewable

A

because its from the earths crust

65
Q

disadvantages of nuclear energy

A

they produce radioactive wastes

66
Q

hydroelectric energy is renewable t or f

A

t

67
Q

disadvantages of hyrdroeledtic energy

A

it floods lands and destroy habbits

68
Q

wind energy is renewable t or f

A

t

69
Q

disadvantages of wind energy

A

it can threaten animals cs of the blades

70
Q

from where is geothermal energy extracted

A

from heat stored in earth

71
Q

geothermal is renewable but

A

it is only found in specific places in earth

72
Q

biomass can only be used as

A

fuel

73
Q

bio mass is not renewable t o f

A

f its renewable

74
Q

disadvantages of biomass

A

it releases carbon dioxide

75
Q

sun light doesn’t fall evenly on earth t or f

A

true

76
Q

whats the melting point of water

A

25

quizes (4 decks)

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