Physics - P1: Conservation and Dissipation of Energy

Energy

The ability to do work

Joules

Unit of energy and work done

The Principle of Conservation of Energy

Energy cannot be created or destroyed, it can only be transferred or stored

Closed system

A system in which no energy transfers take place out of/into the energy stores of the system

Kinetic Energy

Energy a moving object has because of its motion

Gravitational Potential Energy

Energy an object has because of its position in a gravitational field

Elastic Potential Energy

Energy an object has when it is stretched or compressed

Chemical Energy

Energy stored in the chemical bonds between atoms

Thermal Energy

Energy of motion in the particles of a substance

Magnetic Energy

Energy an object has due to its position in a magnetic field

Electrostatic Energy

Energy an object has due to its position in an electric field

Internal Energy

Energy due to the motion and position of particles in an object

Nuclear Energy

Energy stored in the nucleus of an atom

Useful energy

Energy transferred to where it is wanted in the way it is wanted.

Wasted energy

Energy that is not usefully transferred