All forms of electromagnetic radiation, whether they're called waves or rays, are generated by particles in motion. In a radio signal, for example, negatively charged electrons quickly move back ...

Listen to the full series on BBC Sounds. Electrons are negatively charged particles and they transfer energy through wires as electricity. Charge close chargeProperty of matter that causes a force ...

The electricity we use every day is the flow of negatively-charged particles called electrons. Electricity is generated by converting a different form of energy into electrical energy. This energy ...