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25 terms

ICP FINAL #4 - Heat and Temperature

STUDY
PLAY
Temperature
the AVERAGE kinetic energy of an object's particles due to non-directional motion at the atomic level
Heat flow
always goes from hot to cold
Conduction
the direct transfer of heat from one substance to another substance that it is touching
Convection
the transfer of heat by the circulation or movement of a liquid or gas
Radiation
the transfer of heat by rays or waves
Conduction (examples)
stovetop, seat-warmer
Convection (examples)
oven, blood (circulating), furnace
Radiation (examples)
sun, heat lamp
Melting point of water in °F
32°F
Melting point of water in °C
0°C
Melting point of water in K
273K
Boiling point of water in °F
212°F
Boiling point of water in °C
100°C
Boiling point of water in K
373K
Absolute Zero
the temperature at which particles stop moving entirely (impossible to actually reach)
Heat
the TOTAL kinetic energy of an object's particles due to non-directional motion at the atomic level
converting Celsius to Kelvin
C + 273 = K
converting Fahrenheit to Kelvin
must convert to Celsius first, THEN to Kelvin
Which temperature scale can be used for calculations in science?
Kelvins
Why do we have the Kelvin scale?
1) Absolute zero is zero
2) There are no negative temperatures
specific heat
The price you pay (in energy) to change the temperature of something.
high specific heat
difficult to change the temperature
example of high specific heat
water
low specific heat
easy to change the temperature
example of low specific heat
metal