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# Physics definitions IEB 2023-2024

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Physics definitions IEB 2023-2024 A pulse - ANS-A single disturbance in a medium that moves from one point to another Medium - ANS-Material through which a pulse moves Transverse pulse - ANS-A puls... e where the particles disturbed move perpendicularly to the direction in which the pulse is moving Amplitude - ANS-The maximum displacement of a particle in the medium from its rest position (equilibrium) Interferende - ANS-When two or more pulses meet at the same time in the same space Superposition - ANS-The vector addition of two pulses that occupy the same space at the same time Constructive interference - ANS-Occurs when the the superposition of two pulses results in a new pulse with greater amplitude Destructive interference - ANS-Occurs when the superposition of two pulses results in a new pulse with a smaller amplitude Transverse wave - ANS-A succession of transverse pulses in which the particles of the medium move at right angles to the direction of the wave Crest - ANS-Highest point on a wave Trough - ANS-Lowest point on a wave Amplitude - ANS-Maximum displacement from the position of rest Wavelength (lambda) - ANS-The distance between to successive particles in phase Points in phase - ANS-Move in the same direction at the same speed and have the same displacement from the position of rest Period - ANS-The time taken for a complete wave to pass a fixed point (in s) Frequency - ANS-Number of complete waves that pass a fixed point per second (in Hz) Wave speed (v) - ANS-The distance travelled by a wave in a second (m/s) Longitudinal wave - ANS-A wave in which the particles in the medium move parallel to the direction of propagation of the wave [Show More]

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