Jumat, 10 Agustus 2012

Mekanik waves

MECHANICAL WAVE

Mechanical wave is a wave propagation requires a medium in which the energies for the propagation of a wave. The voice is one example of a mechanical wave that propagates through a change in air pressure in the chamber (tight-renggangnya air molecules). Without air, sound can not be propagated. Waves can be seen on the beach, which is a mechanical wave requires water as a medium. Another example of such a wave on a string or a (Slinky)
  The following terms contained in the wave mechanics: 
a.       Wave period (T) is the time required by the wave to travel one full wavelength.
b.      Wavelength (λ) is the distance traveled in one period (the distance between A and C).
c.       Wave frequency is the number of waves that occur per unit time.
d.      Rapid propagation of the wave (v) is the distance that the wave per unit time.
  Examples of wave mechanics:
- The wave occurred on a string if one end digerak moving.
- The wave that occurs on the surface of the water if given the harassment to her (eg by dropping rocks on the surface of a quiet pond water)



v = λ.f
Written by the equation:
f = frequency (Hz)
λ = wavelength (m)
v = rapid propagation of the wave (m / s)