2What is light? Light is a form of electromagnetic radiation. Light is made up of waves of tiny bundles of energy call photons
3A photon is the carrier of electromagnetic radiation of all wavelengths It is a weightlessParticle that acts likeA wave.A photon is a bundle of electromagnetic energy.
4A photon is a bundle of electromagnetic energy A photon is a bundle of electromagnetic energy. Waves of light create rays and bundles of rays make beams.
5Electromagnetic radiation waves come in many forms. Infrared wavesVisible light radiation(This what we call Light)MicrowavesUltra-violetradiationRadio wavesX-rays
6300,000 kilometers/seconds (in vacuum) All of types of electromagnetic radiation share one similarity between them:They all travel at the same speed of light 186,000 miles/seconds (in vacuum)Or300,000 kilometers/seconds (in vacuum)(in vacuum) through air and space.
7When light slows down or changes direction we see refraction of light Examples of refraction:
8The speed of light depends on what it is traveling through. In water, light slows down to about 200,000 km/seconds