https://padlet.com/304807/rn52vxzut42q en-us 2017-11-02 16:24:56 UTC 2025-11-26 10:52:10 UTC hello@padlet.com 304807 https://padlet.com/304807/rn52vxzut42q/wish/202996902 Generally, electromagnetic radiation is classified by wavelength into radio wave, microwave, terahertz (or sub-millimeter) radiation, infrared, the visible region that is perceived as light, ultraviolet, X-rays and gamma rays. The behavior of EM radiation depends on its wavelength.]]> 2017-11-02 16:26:12 UTC https://padlet.com/304807/rn52vxzut42q/wish/202996902 304807 https://padlet.com/304807/rn52vxzut42q/wish/202997960 a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.]]> 2017-11-02 16:28:07 UTC https://padlet.com/304807/rn52vxzut42q/wish/202997960 304807 https://padlet.com/304807/rn52vxzut42q/wish/202998084 Wave speed is the speed at which a wave travels.Wave speed is related to wavelength, frequency, and period by the equation wave speed = frequency x wavelength. The most commonly used wave speed is the speed of visible light, an electromagnetic wave.]]> 2017-11-02 16:28:19 UTC https://padlet.com/304807/rn52vxzut42q/wish/202998084 304807 https://padlet.com/304807/rn52vxzut42q/wish/202998195 the rate at which something occurs or is repeated over a particular period of time or in a given sample.]]> 2017-11-02 16:28:31 UTC https://padlet.com/304807/rn52vxzut42q/wish/202998195 304807 https://padlet.com/304807/rn52vxzut42q/wish/202998536 the maximum extent of a vibration or oscillation, measured from the position of equilibrium.]]> 2017-11-02 16:29:12 UTC https://padlet.com/304807/rn52vxzut42q/wish/202998536 304807 https://padlet.com/304807/rn52vxzut42q/wish/202998780 n 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.]]> 2017-11-02 16:29:41 UTC https://padlet.com/304807/rn52vxzut42q/wish/202998780 304807 https://padlet.com/304807/rn52vxzut42q/wish/202998943 move one's hand to and fro in greeting or as a signal]]> 2017-11-02 16:30:01 UTC https://padlet.com/304807/rn52vxzut42q/wish/202998943