Heat

Heat

1. KINETIC ENERGY

   • Form of energy that flows from one objct to another
   • Temperature = average KE
   • collisions= transfer KE
     • reaches same temperature
   • heat= flow KE
     • vibrational motion
   • hot to cold
   • Gaps
     • air molecules trapped
       • collides absorbing KE high kinetic hot particles
       • acts as intermediary
       • collides and transferring KE to slower cold particles , increases temperature
         • average KE
   • slow moving particles hits fast moving particles = transfer of KE
     • cooler particle becomes warm & hot becomes cold

2. Matter

   • liquid
   • solid
   • gas
     • 2. evaporating
       • Substance transforms a liquid to a gas
     • 1.melting
   • 3. freeziing
   • 4. condencing
     • transition from a gas to a liquid
   • changes of state of matter

3. heat categories

   • Radiant Heat
     • Energy transferred through electromagnetic radiation(light)
       • When protons are absorbed, their energy is transferred to the absorbing body increasing the KE of its atoms
   • convection
     • Heat transfers in fluids
       • Large of particles in a fluid which does KE transfer

4. Heat Capacity

   • defined as the amount of heat required to raise the temperature by one degree celcius
     • Joule is a unit of energy