Physics Course/Motion/Periodic Motion/Wave

< Physics Course‎ | Motion‎ | Periodic Motion

Water WaveEdit

Concentric CirclesEdit

Concentric circles travels in a direction when there is a cobble drops on the water surface

x^2 + y^2 = r^2
Tan \theta = \frac{y}{x}

Which can be expressed as

y(\theta) = r Sin \theta
x(\theta) = r Cos \theta

High Low WaveEdit

Water wave moves in a direction that changes its amplitude sinusoidally

y(t) = r Sin \omega t
\omega = \frac{\lambda}{t} = \lambda f


\lambda : Wavelength . The distance between 2 crests (highest point)
f : Frequency . frequency of time to complete a cycle