# Science

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• Crest Defintion:﻿ A crest is the point on a wave with the maximum value or upward displacement within a cycle. A crest is a point on the wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point in a cycle. Own words: The creat is the highest point of the wave.
• ﻿wave﻿-length Definition: Wavelength, distance between corresponding points of two consecutive waves. ... Wavelength is usually denoted by the Greek letter lambda (λ); it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f. Own Words: the wave legth is the legth of the wave
• Trough Definition: Crest (physics) From Wikipedia, the free encyclopedia. A crest is the point on a wave with the maximum value or upward displacement within a cycle. A crest is a point on the wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point in a cycle. Own Words: Its the lowest part of the wave
• Ampit﻿ude﻿ Definition: Physics One half the full extent of a vibration, oscillation, or wave. The amplitude of an ocean wave is the maximum height of the wave crest above the level of calm water, or the maximum depth of the wave trough below the level of calm water. Theamplitude of a pendulum swinging through an angle of 90° is 45°. Our Words:This means its the total height of the wave
• ﻿mechanical wave Definition: 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.  Owns words: It need othe rtypes of object to make the wave
• electromagnetic waves﻿ Definition: Definition of electromagnetic wave. : one of thewaves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
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