GCSE Physics (Single Science)

All objects are continually absorbing and emitting infrared radiation. Black bodies are perfect absorbers and emitters of radiation.

Lenses are precisely shaped pieces of glass that have been developed and used in corrective glasses, telescopes, microscopes, binoculars, and magnifying glasses.

The Sun is our nearest star. It is a relatively small star when compared to other stars in the Universe. The Big Bang theory suggests how our Universe was created. The evidence for this is red-shift.

The nuclei of atoms contain a large amount of energy. Releasing this energy would free the world from having to use fossil fuels. There are two methods of doing this: fission and fusion.

Waves may be transverse or longitudinal. Electromagnetic waves are transverse waves with a wide range of properties and uses. Sound waves are longitudinal waves.

Learn about the laws of reflection and refraction.

When energy is added to matter, its temperature will rise. The temperature rise will depend on the mass, which in turn depends on its density.

Energy can be described as being in different 'stores'. It cannot be created or destroyed but it can be transferred, dissipated or stored in different ways.

Waves are one way in which energy may be transferred between stores. Both mechanical and electromagnetic waves will transfer energy but not matter.

Turning forces are found in many everyday situations and are essential for machines to function. Levers and gears make use of these turning forces to provide an advantage.