The Electromagnetic Spectrum Poster - Educational Science Teaching Resource (A1 Size 59.4 x 84.1 cm)

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Extremely high frequency. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/Extremely_high_frequency. License: CC BY-SA: Attribution-ShareAlike This poster set can be used wherever teaching is taking place, perfect for use at home as well as the classroom. Simply print out and display to create an informative Electromagnetic Spectrum Information board, or use on screens to engage students with key information. Our posters help students learn essential information no matter where they might be learning.

gamma ray. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/gamma_ray. License: CC BY-SA: Attribution-ShareAlikespectral color. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/spectral%20color. License: CC BY-SA: Attribution-ShareAlike Super high frequency (SHF) is the designation for electromagnetic wave frequencies in the range of 3 GHz to 30 GHz. This band of frequencies is known also as the centimeter band because the wavelengths range from ten to one centimeters. This frequency range is used for most radar transmitters, microwave ovens, wireless LANs, cell phones, satellite communication, microwave radio relay links, and numerous short range terrestrial data links. thermal agitation: The thermal motion of atoms and molecules in any object at a temperature above absolute zero, causing them to emit and absorb radiation. optical window: the optical portion of the electromagnetic spectrum that passes through the atmosphere all the way to the ground. The window runs from around 300 nanometers (ultraviolet-C) at the short end up into the range the eye can use, roughly 400-700 nm and continues up through the visual infrared to around 1100 nm, which is thermal infrared.

x-ray crystallography. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/x-ray%20crystallography. License: CC BY-SA: Attribution-ShareAlike Infrared radiation. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/Infrared_radiation. License: CC BY-SA: Attribution-ShareAlike Solar UV radiation is commonly subdivided into three regions: UV-A (320–400 nm), UV-B (290–320 nm), and UV-C (220–290 nm), ranked from long to shorter wavelengths (from smaller to larger energies). X-Ray Spectrum and Applications: X-rays are part of the electromagnetic spectrum, with wavelengths shorter than those of visible light. Different applications use different parts of the X-ray spectrum. FM Radio: Frequency modulation for FM radio. (a) A carrier wave at the station’s basic frequency. (b) An audio signal at much lower audible frequencies. (c) The frequency of the carrier is modulated by the audio signal without changing its amplitude.High-power microwave sources use specialized vacuum tubes to generate microwaves. These devices operate on different principles from low-frequency vacuum tubes, using the ballistic motion of electrons in a vacuum under the influence of controlling electric or magnetic fields, and include the magnetron (used in microwave ovens), klystron, traveling-wave tube (TWT), and gyrotron. Colors that can be produced by visible light of a narrow band of wavelengths (monochromaticlight) are called pure spectral colors. Quantitatively, the regions of the visible spectrum encompassing each spectral color can be delineated roughly as: non-ionizing radiation. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/non-ionizing_radiation. License: CC BY-SA: Attribution-ShareAlike Heat is energy in transient form that flows due to temperature difference. Unlike heat transmitted by thermal conduction or thermal convection, radiation can propagate through a vacuum. FM radio waves are also used for commercial radio transmission, but in the frequency range of 88 to 108 MHz. FM stands for frequency modulation, another method of carrying information. In this case, a carrier wave having the basic frequency of the radio station (perhaps 105.1 MHz) is modulated in frequency by the audio signal, producing a wave of constant amplitude but varying frequency.

Radar, first developed in World War II, is a common application of microwaves. By detecting and timing microwave echoes, radar systems can determine the distance to objects as diverse as clouds and aircraft. A Doppler shift in the radar echo can determine the speed of a car or the intensity of a rainstorm. Sophisticated radar systems can map the Earth and other planets, with a resolution limited by wavelength. The shorter the wavelength of any probe, the smaller the detail it is possible to observe.Most UV-B and all UV-C is absorbed by ozone (O 3) molecules in the upper atmosphere. Consequently, 99% of the solar UV radiation reaching the Earth’s surface is UV-A. Microwaves can also be produced by atoms and molecules. They are, for example, a component of electromagnetic radiation generated by thermal agitation. The thermal motion of atoms and molecules in any object at a temperature above absolute zero causes them to emit and absorb radiation. Visible light, as called the visible spectrum, is the portion of the electromagnetic spectrum that is visible to (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths is often simply referred to as “light”. A typical human eye will respond to wavelengths from about 390 to 750 nm (0.39 to 0.75 µm). In terms of frequency, this corresponds to a band in the vicinity of 400–790 THz. A light-adapted eye generally has its maximum sensitivity at around 555 nm (540 THz), in the green region of the optical spectrum. The spectrum does not, however, contain all the colors that the human eyes and brain can distinguish. Unsaturated colors such as pink, or purple variations such as magenta, are absent, for example, because they can be made only by a mix of multiple wavelengths. Boundless. Provided by: Boundless Learning. Located at: www.boundless.com//physics/definition/fm-radio-waves. License: CC BY-SA: Attribution-ShareAlike AM radio waves are used to carry commercial radio signals in the frequency range from 540 to 1600 kHz. The abbreviation AM stands for amplitude modulation—the method for placing information on these waves. AM waves have constant frequency, but a varying amplitude.

X-rays. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/X-rays. License: CC BY-SA: Attribution-ShareAlike The microwave region of the electromagnetic (EM) spectrum is generally considered to overlap with the highest frequency (shortest wavelength ) radio waves.radiograph. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/radiograph. License: CC BY-SA: Attribution-ShareAlike Infrared radiation is popularly known as ” heat radiation,” but light and electromagnetic waves of any frequency will heat surfaces that absorb them. ionizing radiation. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/ionizing_radiation. License: CC BY-SA: Attribution-ShareAlike x-ray crystallography: A technique in which the patterns formed by the diffraction of X-rays on passing through a crystalline substance yield information on the lattice structure of the crystal, and the molecular structure of the substance.