https://padlet.com/kainenshults/v3a7x056frapx46p Facts from your research will be added using the note card format specified in ELA. en-us 2021-01-26 14:48:14 UTC 2025-11-18 09:22:32 UTC hello@padlet.com kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1126984616 electromagnetic waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.]]> 2021-01-26 14:48:58 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1126984616 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1140867085 the work of many researchers enabled the use of electronics to convert signals into high frequency oscillating currents, and via suitably shaped conductors, electricity permits the transmission and reception of these signals via radio waves over very long distances.]]> 2021-01-29 14:49:08 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1140867085 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153820443 Combinations of fluxuating electric and magnetic fields created by accelerated electric charges propagate out from those charges at the speed of light in the form of waves, electromagnetic waves or radiation.]]> 2021-02-02 14:29:25 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153820443 edwards_r https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153880629 Electromagnetic Waves. By: Sparks, Donald M., Salem Press Encyclopedia of Science, 2020]]> 2021-02-02 14:38:56 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153880629 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153883748 Light can also be described as waves, waves of changing electric and magnetic fields that propagate outward from their sources.]]> 2021-02-02 14:39:28 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153883748 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153896456 Many natural phenomena exhibit wavelike behavior. Water waves, earthquake waves, and sound waves all require a medium or substance through which to propagate.]]> 2021-02-02 14:41:36 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153896456 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153898943 They propagate at 300 million meters per second through the vacuum of space.]]> 2021-02-02 14:42:01 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153898943 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153902373 Electromagnetic waves are transverse waves. In other words, the changing electric and magnetic fields oscillate perpendicular to each other and to the direction of the propagating wave.]]> 2021-02-02 14:42:35 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153902373 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153907892 The ultimate source of all electromagnetic waves is accelerated electric charges. An accelerated charge is one that is increasing or decreasing its speed or changing its direction of motion or both.]]> 2021-02-02 14:43:30 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153907892 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153910010 All periodic waves, whether they are electromagnetic or mechanical, are characterized by such properties as wavelength, frequency, and speed.]]> 2021-02-02 14:43:51 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153910010 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153912701 An entire spectrum of electromagnetic waves exists which ranges from very long-wavelength (low-frequency) waves to very short-wavelength (high-frequency) waves. ]]> 2021-02-02 14:44:18 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153912701 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153915966 Note that all electromagnetic waves are referred to collectively as light or electromagnetic radiation, not merely the narrow range of wavelengths and frequencies indentified as visible light.]]> 2021-02-02 14:44:51 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153915966 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153919126 infinite or nearly infinite series of electromagnetic waves emanating from some accelerated charge, light appears to come in particle-like bursts of energy. These individual bursts, or quanta, of energy are called photons.]]> 2021-02-02 14:45:21 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153919126 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153921009 Each photon possesses an amount of energy that directly depends on the frequency of its associated electromagnetic wave.]]> 2021-02-02 14:45:42 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153921009 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153922603 Since all life on Earth is bathed constantly in all forms of electromagnetic radiation, scientists must be cognizant of the potential risks, as well as the benefits, of exposures to electromagnetic waves.]]> 2021-02-02 14:45:58 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153922603 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153924672 Almost every aspect of the daily existence of humans is affected, if not guided, by forms of electromagnetic waves or radiation. ]]> 2021-02-02 14:46:20 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153924672 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153927087 The frequency of power waves is the frequency of the alternating current produced by the alternating current generators in electric power plants around the world.]]> 2021-02-02 14:46:44 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153927087 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153932271 Electromagnetic waves with frequencies between 1 kilohertz and 1 billion hertz are generated commonly by series circuits of coils (inductors) and capacitors connected to antennas.]]> 2021-02-02 14:47:34 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153932271 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153934213 Electrons oscillate in a given circuit and on the antenna wire, thereby generating radio waves.

]]> 2021-02-02 14:47:52 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153934213 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153935952 Radio waves include the familiar amplitude modulation (AM), frequency modulation (FM), short wave, and citizen's band, as well as the many television bands.]]> 2021-02-02 14:48:08 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153935952 kainenshults https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153938312 At still higher frequencies and shorter wavelengths, microwaves are often generated in electron tubes called magnetrons.]]> 2021-02-02 14:48:30 UTC https://padlet.com/kainenshults/v3a7x056frapx46p/wish/1153938312