PHYSICS 1BB3 Chapter Notes - Chapter 5: Apple Music, Wavelet, James Clerk Maxwell
31 Jul 2018
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Vibrations: vibration- a periodic wiggle in time, it is in both space and time it is a wave, light and sounds are both vibrations that move as waves. But sound is a mechanical wave (uses a medium to move though: why sound doesn"t travel in a vacuum. Light is a vibration of electric and magnetic fields: it can pass through materials, however, pendulums, a sine curve is formed when sand is released from a swinging object on a pendulum. Is a pictorial representation of a wave: swing so regularly they were once used to time clocks. Each to and fro is called a period: the time of the wing depends only on the length of the pendulum. The size of arc of it does not matter. Is affected, however, by acceleration due to gravity. Wave description: a sine curve can also be traces by a bob attached to a spring undergoing vertical simple harmonic motion, parts:
