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Physics

Physics - Waves

QuestionAnswer
What are the 2 types of waves? transverse & longitudinal
What is a 'transverse wave'? a wave where the oscillations are perpendicular (at right angles) to the direction of wave travel
What is a 'longitudinal wave'? a wave where the oscillations are parallel to the direction of wave travel
What are the 2 parts of a longitudinal wave called? Compressions & rarefactions
What is 'rest position'? the undisturbed position of particles when they are not vibrating
What is 'displacement'? the distance that a certain point in the medium has moved from its rest position
What is 'peak'? the highest point above the rest position
What is 'trough'? the lowest point below the rest position
What is 'amplitude'? the maximum displacement of a point of a wave from its rest position
What is 'wavelength'? distance covered by a full cycle of the wave, usually measured from peak to peak, or trough to trough
What is 'time period'? the time taken for a full cycle of the wave, usually measured from peak to peak, or trough to trough
What is 'frequency'? the number of waves passing a point each second
What type of waves cause oscillations of particles in a solid, liquid or gas? mechanical waves
What type of waves cause oscillations in electrical & magnetic fields? electromagnetic waves
What is the equation for calculating the time period of a wave? Time period = 1 / frequency
What is the equation for calculating wave speed? Wave speed = frequency X wavelength
What is frequency measured in? hertz (Hz)
What is wave speed measured in? metres per second (m/s)
What is wavelength measured in? metres (m)
What is the equation for calculating the speed of sound? speed = distance / time
What is 'reflection'? when a wave bounces off a surface
Created by: samfitter
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