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BJU Physical Sci 21

BJU Physical Science Ch 21 6th edition

TermDefinition
electromagnetic spectrum The entire range of all electromagnetic waves.
electromagnetic wave A disruption in an electromagnetic field that carries energy, even through the vacuum of space.
gamma ray A high-energy photon that is emitted from a nucleus when a radioactive isotope experiences gamma decay.
infrared wave (IR) An electromagnetic wave that is just below (less energetic than) red visible light; used in astronomy, medical imaging, and wireless devices.
microwave A wave from the upper end of the radio wave band; used for navigation, communication, and cooking.
photon A wave bundle, or particle, of electromagnetic energy.
radio wave The longest and lowest energy type of electromagnetic wave; used for navigation and communication.
ultraviolet wave (UV) An electromagnetic wave that is just beyond (more energetic than) violet visible light; used for medical treatment, dentistry, and killing bacteria.
visible light Electromagnetic waves that humans can see.
x-ray A form of electromagnetic energy with wave-lengths between 10 pm and 10 nm that is used for medical imagery, transportation security, and nondestructive inspection.
Created by: marchscience
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