Energy Conversions and Heat

Front

What is the direction of spontaneous heat flow between objects?

Back

Hot to cold.

Front

What is the SI unit for measuring energy and work?

Back

Joule.

Front

What increases when an object becomes warmer?

Back

Thermal energy.

Front

What is a unit of temperature?

Back

Celsius.

Front

What is thermal energy that is not converted into work by a heat engine called?

Back

Waste heat.

Front

Define energy conversion.

Back

The process of changing energy from one form to another.

Front

What is thermal energy?

Back

The total kinetic energy of particles in a substance.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed.

Front

What is the difference between heat and temperature?

Back

Heat is the energy transferred due to temperature difference; temperature measures the average kinetic energy of particles.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.