Thermal Energy

2. transfer of thermal energy by electromagnetic wave.
4. measure of the average kinetic energy of all the particles in an object.
5. transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from one place to another.
6. states that is impossible for heat to flow from a cool object to a warmer object unless work is done.
7. heat engine that burns fuel inside the engine in chambers or cylinders.
9. study of the relationship between thermal energy, heat, and work.
11. amount of thermal energy needed to raise the temperature of 1 kg of a material 1 degrees Celsius.
13. device that converts thermal energy into work.

1. states that the increase in thermal energy of a system equals the work done on the system plus the heat added to the system.
3. device used in an active solar heating system that absorbs radiant energy from the sun.
8. transfer of thermal energy by collisions between particles in matter at a higher temperature and particles in matter at a lower temperature.
9. sum of kinetic and potential energy of the particles in an object; is transferred by conduction, convection, and radiation.
10. material in which heat flows slowly.
12. thermal energy that flows from a warmer material to a cooler material.