Waves

Waves

1. The crest is the maximum positive amount of displacement from the equilibrium point.

   • The trough is the maximum negative amount of displacement from the equilibrium point.
     • The amplitude (A) is the distance from the equilibrium point to the crest.
       • The wavelength (λ) is the length from crest to crest or trough to trough and corresponds to one cycle

2. Mechanical Waves

   • A transverse wave happens when the particles in a medium vibrate perpendicular to the direction of the wave’s motion.
   • A longitudinal wave happens when the particles in a medium vibrate in the same direction of the wave’s motion.

3. Speed of a wave

   • Energy of a Wave
     • Standing waves
       • Where the two waves meet, a destructive interference occur called node
       • where the two waves are perpendicularly away, a constructive interference occur and it’s called antinode.

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