High energy electromagnetic radiation (eg. Light is carried in discrete quanta packets (photons).Ĭonnection to Big Idea about evolution: Light intensity and availability has a substantial influence on biodiversity as it is essential for many processes (like photosynthesis). Thus, they can become ionized or interact with each other.Ĭonnection to Big Idea about quantum: When light is shed onto a material, its particles will interact with the incoming photons and emit electrons (photoelectric effect).
Subatomic particles interact with each other emitting electromagnetic radiation. Atoms and molecules can absorb electromagnetic radiation which increases their kinetic energy. Currently scientists are looking for ways to detect other types of radiant energy like neutrinos and gravitational waves which will change radically the way we perceive our universe.Ĭonnection to Big Idea about particles: Electromagnetic radiation is carried by particles called photons. Electromagnetic radiation is the only mean we have so far to collect information from the universe. An example of such an interaction are the tails of comets which always have a direction opposite to the Sun due to its radiation pressure.Ĭonnection to Big Idea about the universe: Stars and galaxies throughout the Universe emit electromagnetic radiation at different wavelengths. Radiant energy is the energy of electromagnetic waves.Ĭonnection to Big Idea about forces: When a surface is exposed to electromagnetic radiation, photons interact with that surface (causing what we call) radiation’s pressure) and thus a force acts on it. There are many types of these waves depending on the frequency (X-rays, Ultraviolet, Visible light, Infrared etc). Energy > Energy and forces > Electromagnetic radiation and radiant energyĮlectromagnetic radiation (light) is electromagnetic waves that propagate through space.
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