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 ...

Waves are one way in which energy may be transferred between stores. Both mechanical and electromagnetic waves will transfer energy but not matter. Reflection, refraction, and sound waves - OCR ...

Wave behaviour - OCR 21st Century Waves are one way in which energy may be transferred between stores. Both mechanical and electromagnetic waves will transfer energy but not matter. Light and ...

For a long time, scientists have been searching for a single theory that connects all the forces of nature. A new geometric ...