Heat, Temperature and Energy Transfer

Physics, Heat and Gases, Primary Physics, Age 11-14

Definitions of temperature and heat; conservation of energy; energy transfers, including chemical, mechanical and electrical examples; Sankey Diagrams.


1Energy basics http://teachable.net/res.asp?r=12862Temperature and Heat Temperature and heat are NOT THE SAME.3Temperature How hot or cold it is.
Measured in degrees Celsius. 4Heat The amount of thermal energy measured in joules (J). A cup of hot tea has heat energy in the form of the kinetic energy of its particles. 5A swimming pool at 30 C is at a lower temperature than a cup of tea at 80 C.BUT
the swimming pool contains more water so it stores more thermal energy or heat. 6The small beaker of water boils first The large beaker contains more water and needs more thermal energy or heat to reach 100 C.

7 The chemical energy stored in TNT is transferred to the surroundings as thermal energy sound energy and kinetic energy. 8 Sound energy can be transferred to your eardrum as kinetic energy (movement energy). 9 The battery transfers stored chemical energy as electrical energy. The electrical energy is transferred to