Uses of thermal energy, p 127-134

Front

How can energy be transferred from a cool object to a warm object?

Back

Work must be done.

Front

Heat is the movement of _____ from one object to another.

Back

energy.

Front

What is a machine that converts thermal energy into mechanical energy?

Back

heat engine.

Front

What device regulates the temperature of a system?

Back

thermostat.

Front

What does the second law of thermodynamics state?

Back

Thermal energy always transfers to cooler objects.

Front

Define thermal energy.

Back

The total kinetic energy of particles in a substance.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation?

Back

The transfer of energy through electromagnetic waves.

Front

What is a heat engine?

Back

A device that converts thermal energy into mechanical work.