Physics Course/Motion/Periodic Motion/Wave

Water Wave

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 )=rSin\theta

x(\theta )=rCos\theta

Water wave moves in a direction that changes its amplitude sinusoidally

y(t)=rSin\omega t

\omega ={\frac {\lambda }{t}}=\lambda f

With

\lambda

: Wavelength . The distance between 2 crests (highest point)

f

: Frequency . frequency of time to complete a cycle

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