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Science > Chapter 14 > Flashcards

Chapter 14 Flashcards

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0
Q

Freezing point of water is 0° and boiling point of water is 100°

A

Celsius scale

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1
Q

The amount of joules of energy required to raise the temperature of 1 kg of a substance by 1 kelvin unit

A

Specific heat

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2
Q

The transfer of heat by the movement of current within a fluid: heated air in a room, ocean currents, land breezes and sea breezes

A

Convection

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3
Q

What happens to a substance when thermal energy increases

A

It’s particles move faster and the substance expands; thermal expansion

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4
Q

Official SI not degrees freezing point of water is 273 in boiling point of water is 373

A

Kelvin scale

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5
Q

Zero kelvins is -273° which is the coldest temperature possible

A

Absolute zero

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6
Q

A measure of the average kinetic energy of individual particles of matter

A

Temperature

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7
Q

The circular movement of particles of matter with different amounts of thermal energy

A

Convention current

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8
Q

Is thermal energy moving from a warmer object to a cooler object

A

Heat

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9
Q

Is the transfer of thermal energy

A

Heat

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10
Q

Thermal energy is the in a substance

A

Total potential and kinetic energy of the particles

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11
Q

A material with high specific heat can

A

Absorb a great deal of thermal energy without a great change in its temperature

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12
Q

What is heat measured in

A

Joules

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13
Q

The Temperature 1 kg of a substance by 1 K unit is

A

Specific heat

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14
Q

The transfer of thermal energy by electromagnetic waves

A

Radiation

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15
Q

A material with high specific heat can

A

Absorb a great deal of thermal energy without a great change in its temperature

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16
Q

What is the specific heat of water

A

4180 J/kg-k

17
Q

The Temperature 1 kg of a substance by 1 K unit is

A

Specific heat

18
Q

How do refrigerators keep things cold

A

Refrigerators absorb thermal energy from the food inside and the transfers the thermal energy to the room outside
A lack of thermal energy is cold
Heat movers-refrigerators and air conditions
Move heat for cool areas to warm areas

19
Q

What is the hardest thing to raise temperature

A

Water

20
Q

Transfer of heat from one particle of matter to another without The movement of matter are in direct contact

A

Conduction

21
Q

What would happened when two objects have different temperatures

A

Heat will flow from warmer object To the colder object

22
Q

Transfer of thermal energy very well

A

Conductor

23
Q

The amount of joules of energy required to raise the temperature of 1 kg of a substance by 1 kelvin unit

A

Specific heat

24
Q

Do not transfer of thermal energy

A

Insulators

25
Q

How do engines use thermal energy

A

Heat engines transform thermal energy into mechanical energy

26
Q

What causes matter to change state

A

Matter changes state when thermal energy was either absorbed or released

27
Q

What is the hardest thing to raise temperature

A

Water

28
Q

Transfer of heat from one particle of matter to another without The movement of matter are in direct contact

A

Conduction

29
Q

The transfer of heat by the movement of current within a fluid: heated air in a room, ocean currents, land breezes and sea breezes

A

Convection

30
Q

The circular movement of particles of matter with different amounts of thermal energy

A

Convention current

31
Q

What is the specific heat of water

A

4180 J/kg-k

32
Q

Freezing point of water is 32° and boiling point of water is 212°

A

Fahrenheit scale

33
Q

The transfer of thermal energy by electromagnetic waves

A

Radiation

34
Q

What would happened when two objects have different temperatures

A

Heat will flow from warmer object To the colder object

35
Q

Transfer of thermal energy very well

A

Conductor

36
Q

Do not transfer of thermal energy

A

Insulators

37
Q

What causes matter to change state

A

Matter changes state when thermal energy was either absorbed or released

38
Q

What happens to a substance when thermal energy increases

A

It’s particles move faster and the substance expands; thermal expansion

39
Q

How do engines use thermal energy

A

Heat engines transform thermal energy into mechanical energy

40
Q

How do refrigerators keep things cold

A

Refrigerators absorb thermal energy from the food inside and the transfers the thermal energy to the room outside
A lack of thermal energy is cold
Heat movers-refrigerators and air conditions
Move heat for cool areas to warm areas

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