PHYS 1300 Lecture Notes - Lecture 16: Equilibrium Point, Standing Wave, Wavenumber
13 Nov 2017
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Document Summary
Light waves oscillations of electric and magnetic fields. Sound waves oscillations of our particles. Ripples on a pond oscillations of water molecules. Periodic/harmonic motion any motion that repeats itself at regular interval. Simple harmonic motion a special case of harmonic motion the driving force depends on the displacement from equilibrium. Characterized by f frequency cycles per unit time (s-1 or hz) T period, time per cycle (seconds) f = 1/t. Simple harmonic motion: a mass is attached to a spring is pulled 20. 0 cm to the right and released at t = 0. It makes 20 complete oscillations in 10. 0 s. Produced by oscillations or vibrations no overall forward movement of matter. Waves can be deflected, reflected, can interfere (either constructively or: wavelength, period, wave speed reconstructively) A disturbance which is free to move through space carrying energy without the overall forward movement of matter. Water, fluids, sound, seismic: em waves.
