Look up the definition of the word which denotes the taking up of radiant energy by materials.

Discusses these basic laws in physics and provides links to the scientists who formulated them.

Find out how a temperature difference encourages the transfer of energy from one object to another.

Introduces the principles of conduction, convection and radiation.

Find out what materials prevent or slow the movement of heat or electricity.

Explains the amount of energy contained in moving object. See related terms.

Find out how gravity, space and inertia all influence the definition of matter.

Learn about how this term expresses the concept of stored energy. Includes some easily-grasped examples.

Read about a measurement which expresses a quantity of force being applied to a given area.

Read a definition of this quantity, which measures the amount of heat required to raise a gram of a given substance by one degree Celsius.

Check out the different forms commonly assumed by matter including liquid, gas, plasma and ions.

Offers details on the thermodynamic nature and the methods of measuring this physical variable.