polarised, Longitudinal waves cannot be … ., longitudinal, … waves are waves in which the direction of vibration of the particles is parallel to (along) the direction in which the wave travels., Electromagnetic, … waves are oscillating electric and magnetic fields that progress through space without the need for a substance., wavefronts, The waves observed in a ripple tank are referred to as …, which are lines of constant phase (e.g., crests)., transverse, … waves are waves in which the direction of vibration is perpendicular to the direction in which the wave travels., period, The … of a wave is the time for one complete wave to pass a fixed point., plane-polarised, Transverse waves are … if the vibrations stay in one plane, frequency, The … of a wave is the number of cycles of vibration of a particle per second, or the number of complete waves passing a point per second., supercrest, Where a crest meets a crest, a … is created - the two waves reinforce each other., cycle, One complete … of a wave is from maximum displacement to the next maximum displacement (e.g., from one wave peak to the next)., displacement, The … of a vibrating particle is its distance and direction from its equilibrium position., zero, Where a crest meets a trough of the same amplitude, the resultant displacement is … ., superposition, When waves meet, they pass through each other. At the point where they meet, they combine for an instant before they move apart. This combining effect is known as … ., Stationary, Waves are formed on a rope if two people send waves continuously along a rope from either end., phase, The … difference between two particles vibrating at the same frequency is the fraction of a cycle between the vibrations of the two particles., mechanical, Sound waves, seismic waves, and waves on strings are examples of waves that pass through a substance. These types of waves are often referred to as … waves., supertrough, Where a trough meets a trough, a … is created - the two waves reinforce each other., wavelength, The … of a wave is the least distance between two adjacent vibrating particles with the same displacement and velocity at the same time (e.g., distance between adjacent crests)., amplitude, The … of a wave is the maximum displacement of a vibrating particle. For a transverse wave, this is the height of a wave crest or the depth of a wave trough from its equilibrium position..

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