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Kinetic Theory of Matter – all matter is made up of small particles (atoms and molecules). The hotter
they are, the faster they move.
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Temperature measures the average kinetic
energy (speed, kinda) of particles in something.
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Heat is the transfer of energy from a higher
temperature object to a lower temperature object.
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Types of Heat Energy Transfer
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Conduction is the transfer of heat energy between particles
that are in direct contact. Faster moving particles
collide with slower moving particles, transferring energy.
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Conductors readily transfer heat energy.
Insulators slow the transfer of heat energy.
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Convection is the transfer of heat by movement of the
heated substance itself. Cooler fluids are more dense than
warmer fluids, causing them to sink, forcing the warmer
upwards.
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Fluids are gases and liquids because they
flow.
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Radiation is the transfer of heat energy through electromagnetic waves,
usually infra-red waves.
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Wildland Firefighting
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Why would you not want to be uphill from a fire?
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Fire Shelters and Radiant Heat
1000o F
120o F