the amount of heat energy in something depends on...
how hot it is, the material and its mass
3 of 14
when the particles are heated what happens to the material?
it expands
4 of 14
what is conduction?
when the particles in solids are packed together tightly and vibrate, when they gain energy the vibrations pass on
5 of 14
metals are ? conductors
good
6 of 14
what is an insulator?
something that doesn't conduct heat very well
7 of 14
what is convection?
convection takes places in liquids and gases and is when the air near the fire is heated, the particles spread and become less dense. as the cool air rises and meets the hot, the hot air passes on energy
8 of 14
what is infrared radiation?
it can transfer heat energy through open spaces and passes it on through radiation
9 of 14
a solid ? to get to a liquid
melts
10 of 14
a liquid ? to get to a gas
evaporates
11 of 14
a gas ? to get to a liquid
condenses
12 of 14
a liquid ? to get to a solid
freezes
13 of 14
what points of a substance are the same tempreature
melting point and freezing point
14 of 14
Other cards in this set
Card 2
Front
what is heat energy measured in?
Back
joules
Card 3
Front
the amount of heat energy in something depends on...
Back
Card 4
Front
when the particles are heated what happens to the material?
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