OCR A: A-Level Physics

Key info and definitions Electric Circuit Components Junction of conductors: Allows current...

Potential Difference and EMF Potential difference is the energy transferred per unit charge fr...

Kirchoff's Laws The sum of currents entering a junction in a circuit is equal to the sum of cu...

Wave Motion Waves transfer energy from one place to another without any net transfer of matter. ...

Photons A quantum (plural: quanta) is a small discrete unit of energy. A photon is a quantum of...

Structure of the Universe Galaxies are clusters of millions and billions of stars. They are const...

Temperature Thermal equilibrium describes the equal transfer of thermal energy in and out of a sy...

Core Info and Definitions A capacitor is a circuit component that stores charge in a circuit by ...

Definitions and Core Info An electric field is a region around a body in which other charged bod...

Definitions and Core Info A magnetic field is a field in which a charged particle experiences a ...

The Nuclear Atom The alpha particle scattering experiment involved the firing of alpha particles ...

Xray production Electrons are emitted into a vacuum tube via thermionic emission. An external pow...