energy, work, heat

Work

The process of energy conversion or transfer.

Work done

The amount of energy converted or used.

Energy

The ability to do work, measured in joules.

Kinetic energy

The energy an object possesses by virtue of its motion.

Potential energy

The energy an object possesses by virtue of its position, condition, or state.

Renewable energy

Energy that can be replenished naturally.

Non-renewable energy

Energy that cannot be renewed naturally.

Temperature

The measurement of the degree of hotness.

Thermal equilibrium

The state where there is no net change of thermal energy between two objects, indicating they have the same temperature.

Conduction

The transfer of thermal energy through a medium without any flow of the medium.

Convection

The transfer of thermal energy by means of convection currents in a fluid due to a difference in density.

Heat insulator

A poor conductor of heat.

Greenhouse effect

The process that occurs when greenhouse gases in Earth's atmosphere trap the sun's heat, making the Earth warmer.

Principle of conservation of energy

The principle that states energy cannot be created nor destroyed, only converted from one form to another.

Conversion of energy

The process where heat and sound are given off due to friction, resulting in the conversion of one form of energy to another.

Work done

The product of the constant force exerted on an object and the distance moved by the object in the direction of the force, measuring how much energy is converted.

Kinetic energy

The energy a body possesses due to its motion.

Gravitational potential energy (GPE)

The energy possessed by a body due to its position above the ground.