Vocabulary-

Section 1

 * = = __Temperature-__ measure of the average kinetic energy of all the particles in an object.
 * __Thermal Energy-__ sum of the kinetic and potential energy of the particles in an object; is transferred by conduction, convection, and radiation.
 * __Heat-__ thermal energy that flows from a warmer material to a cooler material.
 * __Specific Heat-__ amount of thermal energy needed to raise the temperature of 1 kg of a material 1 degree C.

Section 2

 * __Conduction-__ is the transfer of thermal energy by collisions between particles in matter.
 * __Convection-__ is the transfer of thermal energy in a fluid by the movement of warmer and cooler fluid from place to place.
 * __Radiation-__ is the transfer of energy by electromatic waves.
 * __Insulator-__ a materials in which heat flows slowly.

Section 3

 * __Solar collectors-__ absorb radiant energy from the sun
 * __Thermodynamics-__ is the study of the relationship between thermal energy, heat, and work.
 * __First law of thermodynamics__,- the increase in thermal energy of a system equals the work done on the system plus the heat transferred to the system.
 * __Second law of thermodynamics-__ states that it is impossible for heat to flow from a cool object to a warmer object unless work is done.
 * __Heat engine-__ is a device that converts heat into work.
 * __Internal combustion engine-__ is when fuel is burned inside the engine in chambers or cylinders.