science thremal eneregy

The__Increases when the average kinetic energy of the particles in the material increases 

temperature

Thermal energy transfer that does not require matter is

radiation.

Thermal energy that flows from a higher to a lower temperature is

heat.

Thermal energy is transferred through matter by direct contact of particles by

conduction.

According to the__ heat never flows spontaneously from a lower to a higher temperature 

Second Law of Thermodynamics

____Is the total kinetic energy and potential energy of the particles in a material 

Thermal energy

Materials in which thermal energy does not move easily are

insulators.

The transfer of thermal energy by movement of matter is

convection.

A device that absorbs radiant energy from the Sun is a 

solar collector.

A device that changes thermal energy into mechanical energy is called a

heat engine.