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Because of their higher frequency, infrared waves carry more energy than radio waves or microwaves. This higher energy causes molecules in your skin and other substances to vibrate more rapidly. The vibrations produce heat and cause the temperature of your skin or other materials to rise.
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www.paec-soar.org/courses/physics_sl_lesson3_lightenerg...
www.paec-soar.org/courses/physics_sl_lesson3_lightenergy.pdf
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These waves, known as electromagnetic waves, are unique because, unlike water waves or sound waves, electromagnetic waves can travel through a vacuum. ... Heat lamps work on this principle. The transport of heat by (infrared) electromagnetic radiation is often called "radiant heat."
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www.ccpo.odu.edu/SEES/ozone/class/Chap_4/4_2.htm
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7) Infrared waves are often called heat waves because they ; A) emanate from relatively hot sources. B) consist of frequencies lower than those of visible light. C) induce resonance in molecules and increase internal energy in a substance.
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www.physics.eku.edu/Ciocca/tak5.html
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9) Infrared waves are often called heat waves because they; A) emanate from relatively hot sources.; B) consist of frequencies lower than those of visible light.; C) induce resonance in molecules and increase internal energy in a substance.;
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www.physics.eku.edu/Ciocca/take6.html
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Infrared waves, with frequencies lower than visible light, may vibrate not only the electrons, but entire molecules in the structure of the matter. This vibration increases the internal energy and temperature of the structure, which is why infrared waves are often called heat waves.
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www.sci-ctr.edu.sg/ssc/detailed.jsp?artid=5404&type=6&r...
www.sci-ctr.edu.sg/ssc/detailed.jsp?artid=5404&type=6&root=4&parent=4&cat=48
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3) Infrared waves are often called heat waves because they ... e) are the predominant waves emitted by the sun ... a) scatters infrared light b) absorbs infrared light...
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www.usi.edu/Science/physics/scheller/homework/hw10.htm
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Below the lowest frequency of visible light is the infrared radiation, often called heat waves. Still lower are microwaves and radiowaves. ... Because infrared radiations are essentially radiant heat, thermal detectors are used to detect changes in the radiations. Thermal detectors are made as small as possible to reduce...
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www.yale.edu/ynhti/curriculum/units/1999/5/99.05.07.x.h...
www.yale.edu/ynhti/curriculum/units/1999/5/99.05.07.x.html
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(b) The information obtained is easily evaluated because it is natural and familiar. ... It should also be noted screening nets, although they reflect active infrared waves, do not shield a hidden object which emits heat from detection by passive infrared devices. ... These characteristics, called factors of recognition,
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www.globalsecurity.org/military/library/policy/army/acc...
www.globalsecurity.org/military/library/policy/army/accp/en0065/le5.htm
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Be sure to flip back to the Glossary as often as you need to, making each term part of your personal vocabulary. ... is called kinetic energy. Both work and energy equals the product of a force times the distance the force is applied. The energy and work of the gas on the balloon ... This is because all the forces are balanced.
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www.scribd.com/doc/7360131/Janice-Vancleeves-Engineerin...
www.scribd.com/doc/7360131/Janice-Vancleeves-Engineering-for-Every-Kid
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