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