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Science > Energy, Heat And Temperature > Flashcards

Energy, Heat And Temperature Flashcards

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1
Q

Totaly Energy

A

Remains the same

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2
Q

Energy is

A

Never created or destroyed, just is converted from one form to another

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3
Q

List some types of energy

A 
Kinetic
Potential
Thermal
Electrical
Chemical
Nuclear
Solar
Wind
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4
Q

Kinetic Energy

A

Movement

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5
Q

Potential Energy

A

Stored due to position

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6
Q

Thermal Energy

A

Heat

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7
Q

Chemical Energy

A

Stored in chemicals

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8
Q

All substances have their own

A

Specific heat

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9
Q

Specific Heat

A

The amount of energy it takes to raise the temperature of a kilogram of substance by a degree

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10
Q

More specific heat takes

A

More energy

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11
Q

Temperature

A

The average kinetic energy of the particles of a substance

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12
Q

Temperature is expressed in

A

K
F
C

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13
Q

Formula for K

A

K = C + 273

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14
Q

Formula for C

A 
C = (F - 32)(5/9)
C = K - 273
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15
Q

Formula for F

A

F = (C(9/5)) + 32

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16
Q

Heat

A

Energy that flows from higher temperatures to lower temperatures

17
Q

When temperatures are the same,

A

There is no heat flow

18
Q

Formula for total energy

A

Q = mcdeltaT

19
Q

Exothermic

A

When a process releases heat

20
Q

Endothermic

A

When a process absorbs heat

21
Q

Examples of Exothermic

A

Burning gas

Condensing water

22
Q

Examples of Endothermic

A

Melting ice

Evaporating water

23
Q

Energy

A

The ability to do work or cause a change

24
Q

Mechanical to Electrical

A

Spinning the wheels of a bike charges your phone

25
Q

Electrical to mechanical

A

Electric fan

Electric car

26
Q

Electrical to thermal

A

Toaster

Heater

27
Q

Chemical to thermal

A

Hand warmer
Burning fuel like gasoline
Turning food in our bodies into energy to maintain our body heat

28
Q

Hot tea

A

Particles move very fast

29
Q

Iced tea

A

If frozen, the particles move very slowly, they only vibrate and they fall apart and melt

30
Q

HEAT

A

Thermal energy that flows from a higher temperature to a lower temperature

31
Q

Heat unit

A

J

Joules

32
Q

Specific Heat unit

A

J/(kgC)

Science (7 decks)

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