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Different types of the same thing
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- Astronomers talk about light, radiation, gamma rays, x-rays, microwaves, infrared, ultraviolet and radio waves. There are many terms but in fact they are different types of the same thing.
www.esa.int/Science_Exploration/Space_Science/What_is_electromagnetic_radiationESA - What is electromagnetic radiation? - European Space Agency
Apr 8, 2008 · Visible light — which, like all electromagnetic radiation, travels in waves — includes wavelengths between about 380 nanometers (violet) and about 740 nanometers (red). Radiation with wavelengths shorter than visible light includes gamma rays, X-rays and ultraviolet light.
The same kind of thing is true of light. Visible light has a wavelength from about 400-700nm, far smaller than anything you can discern unaided. This corresponds to frequencies of about 4-7*10^14 Hz, far faster than anything you can perceive.
Feb 18, 2010 · Radio, microwaves, UV, visible light and gamma rays have completely different effects, but they're all exactly the same kind of thing: electromagnetic radiation (EMR). They're just waves of energy travelling through space — or through things.
Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields. In a vacuum, electromagnetic waves travel at the speed of light, commonly denoted c. There, depending on the frequency of oscillation, different wavelengths of electromagnetic spectrum are produced.
- Light
- Waves
- Particles
- Matter
- Interactions Between Light and Matter
Gamma rays, X-rays, ultraviolet light, visible light (the visible rainbow), infrared light, microwaves, and radio waves are all forms of light, also called electromagnetic radiation. Together, they make up the electromagnetic spectrum. (That’s right, the radio waves that carry music from the station to your radio, the microwaves that heat up your f...
Light behaves like a wave. You are probably familiar with waves: water waves that ripple across a pond, sound waves that vibrate air and ear drums, and seismic (earthquake) waves that cause the ground to shake. These are all mechanical waves—energy that propagates through matter, causing it to move up and down, back and forth, or side to side. Ligh...
Light also behaves like a particle. A particle of light is called a photon. Each individual photon has a very specific amount of energy (no more, no less), which corresponds to its wavelength. Blue photons carry more energy than red photons. Ultraviolet photons carry more energy than infrared photons. Sometimes photons are described as “packets of ...
Matter is the scientific catch-all word for stuff—anything that has mass and takes up space. Matter is made of microscopic particles called atoms. Atoms are made of even smaller, or subatomic, particles known as protons, neutrons, andelectrons. Atoms can combine to formmolecules. Solids, liquids, and gases are all forms of matter. Planets, stars, n...
As you may have gathered, light and matter are intricately linked. Matter gives off light. Every object emits, or gives off, light of one sort or another simply because of its temperature. Glowing objects like stars, galaxies, light bulbs, and lava are all sources of visible light. Cooler objects like planets, dust grains, rocks, trees, animals, an...
Astronomers talk about light, radiation, gamma rays, x-rays, microwaves, infrared, ultraviolet and radio waves. There are many terms but in fact they are different types of the same thing.
Sep 25, 2019 · Learn about the different types of radiation, how they interact with atoms and how they can affect you. Radiation is a type of energy that can travel through space. Sometimes it travels in the form of a wave. That’s called electromagnetic radiation.
