Waves 0.0 / 5 ? PhysicsWavesGCSEAQA Created by: MidnightemmaxCreated on: 14-10-22 12:20 Waves A way in which energy may be transferred between stores without transferring matter 1 of 17 Oscillations Repeated and regular fluctuations above and below a fixed point 2 of 17 Vibrations Repeated forwards and backwards movement about a fixed point 3 of 17 Longitudinal Wave A wave in which the vibrations or oscillations are parallel to the direction of the wave travel 4 of 17 Examples of longitudinal waves Sound Ultrasound Seismic P-waves 5 of 17 Compression A region in a longitudinal wave where the particles are closest together 6 of 17 Rarefaction A region in a longitudinal wave where the particles are furthest apart 7 of 17 Transverse wave A wave in which the vibrations or oscillations are perpendicular to the direction of wave travel 8 of 17 Examples of transverse waves Water waves Vibrations along a string Mexican Wave Electromagnetic waves (Light waves, radio waves, microwaves etc.) Seismic S-waves 9 of 17 Mechanical Waves Causes the particles in a solid, liquid or gas to oscillate and need medium to travel through 10 of 17 Electromagnetic Waves Causes electrical and magnetic fields to oscillate 11 of 17 Rest Position The position of particles or fields when they are not vibrating 12 of 17 Displacement The distance that a point of a wave has moved from its rest position 13 of 17 Amplitude (a) The maximum displacement of a point of a wave from its rest position 14 of 17 Peak or crest The largest displacement of a point of a wave above the rest position 15 of 17 Trough The largest displacement of a point of a wave below the rest position 16 of 17 Wavelength (λ) The distance covered by a full cycle of the wave 17 of 17
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