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

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radar. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/radar. License: CC BY-SA: Attribution-ShareAlike X-rays. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/X-rays. License: CC BY-SA: Attribution-ShareAlike visible light: the part of the electromagnetic spectrum, between infrared and ultraviolet, that is visible to the human eye Ultra high frequency. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/Ultra_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. The danger posed by lower energy UV radiation is derived from the ultraviolet photon ‘s power to alter chemical bonds in molecules, even without having enough energy to ionize atoms. 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. newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

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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 Spectrum: A small part of the electromagnetic spectrum that includes its visible components. The divisions between infrared, visible, and ultraviolet are not perfectly distinct, nor are those between the seven rainbow colors. AM radio waves: Waves used to carry commercial radio signals between 540 and 1600 kHz. Information is carried by amplitude variation, while the frequency remains constant. The portion of the EM spectrum used by photosynthesic organisms is called the photosynthetically active region (PAR) and corresponds to solar radiation between 400 and 700 nm, substantially overlapping with the range of human vision. There is a wide range of subcategories contained within radio including AM and FM radio. Radio waves can be generated by natural sources such as lightning or astronomical phenomena; or by artificial sources such as broadcast radio towers, cell phones, satellites and radar.

The microwave portion of the radio spectrum can be subdivided into three ranges, listed below from high to low frequencies. ionizing radiation. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/ionizing_radiation. License: CC BY-SA: Attribution-ShareAlike Super high frequency. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/Super_high_frequency. License: CC BY-SA: Attribution-ShareAlike 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. non-ionizing radiation. Provided by: Wiktionary. Located at: en.wiktionary.org/wiki/non-ionizing_radiation. License: CC BY-SA: Attribution-ShareAlikeInfrared light includes most of the thermal radiation emitted by objects near room temperature. Infrared light is emitted or absorbed by molecules when they change their rotational-vibrational movements.

Visible wavelengths pass through the optical window, the Earth’s atmosphere allows this region of the electromagnetic spectrum to pass through largely unattenuated (see opacity plot in. By combining observations at different wavelengths, we can develop a more complete picture of the structure, composition and behaviour of an object than the visible wavelengths alone can show. Boundless. Provided by: Boundless Learning. Located at: www.boundless.com//physics/definition/fm-radio-waves. License: CC BY-SA: Attribution-ShareAlikeBoundless. Provided by: Boundless Learning. Located at: www.boundless.com//physics/definition/radio-waves. License: CC BY-SA: Attribution-ShareAlike Radio waves. Provided by: Wikipedia. Located at: en.Wikipedia.org/wiki/Radio_waves. License: CC BY-SA: Attribution-ShareAlike By exploring this image, you can see how astronomers have used a set of single-colour images to construct the colour picture of a ring of star clusters surrounding the core of the galaxy NGC 1512. Each image represents a specific colour or wavelength region of the spectrum, from ultraviolet to near infrared, and shows the wide wavelength range covered by Hubble. Astronomers chose to study NGC 1512 in these colours to emphasise important details in the ring of young star clusters surrounding the core.

Boundless. Provided by: Boundless Learning. Located at: www.boundless.com//physics/definition/thermal-agitation. License: CC BY-SA: Attribution-ShareAlike 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: Gamma rays are the highest energy EM radiation and typically have energies greater than 100 keV, frequencies greater than 10 19 Hz, and wavelengths less than 10 picometers. 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. Infrared radiation can be used to remotely determine the temperature of objects (if the emissivity is known). This is termed thermography, mainly used in military and industrial applications.

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radar: A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of sent radio waves (usually microwaves) reflected from their surfaces.