https://padlet.com/303983/v7l9w1wp21pv Made with charm en-us 2017-11-15 16:25:10 UTC 2025-11-06 07:27:10 UTC hello@padlet.com 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207285494 In physics, the wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats, and thus the inverse of the spatial frequency. ]]> 2017-11-15 16:27:39 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207285494 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207288775 Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency]]> 2017-11-15 16:32:30 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207288775 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207288954 The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light.]]> 2017-11-15 16:32:46 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207288954 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207292935 In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space time, carrying electromagnetic radiant energy.]]> 2017-11-15 16:38:25 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207292935 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207294352 Light travels at a constant, finite speed of 186,000 mi/sec. A traveler, moving at the speed of light, would circum-navigate the equator approximately 7.5 times in one second. By comparison, a traveler in a jet aircraft, moving at a ground speed of 500 mph, would cross the continental U.S. once in 4 hours.

]]> 2017-11-15 16:40:35 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207294352 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207299605 On Earth, the speed of sound at sea level — assuming an air temperature of 59 degrees Fahrenheit (15 degrees Celsius) — is 761.2 mph (1,225 km/h). Because gas molecules move more slowly at colder temperatures, that slows the speed of sound; soundmoves faster through warmer air]]> 2017-11-15 16:48:30 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207299605 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207299869 A transverse wave is a moving wave that consists of oscillations occurring perpendicular (right angled) to the direction of energy transfer (or the propagation of the wave). If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the y–z plane.]]> 2017-11-15 16:48:51 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207299869 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207300293 a wave vibrating in the direction of propagation.]]> 2017-11-15 16:49:26 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207300293 303983 https://padlet.com/303983/v7l9w1wp21pv/wish/207300993 A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.]]> 2017-11-15 16:50:27 UTC https://padlet.com/303983/v7l9w1wp21pv/wish/207300993