Acoustics

= Acoustics =


 * Speed: **

Is the distance that the waves travel in unit time (m/s). The different waves travel at different speeds, the waves on the sea are slow compared to the speed of sound, the sound travel 330 metres every second but even that's not as fast as radio waves, they travel at the speed of light.


 * Frecuency: **

Is the number of complete waves that pass a point per second, this is measured in Hertz (Hz)


 * Wavelength: **

Is the distance between matching points on a wave. This is something called Lambda an it is measured in metres (m). A short wavelength creates a wave with a high frecuency, and a long wavelength creates a wave with a low frecuency. Waves carry energy from one place to another. Sound, light, and radio signals all travel in the form of waves.


 * Types of wave: **

Transverse waves vibrate at right angles to the direction of travel of the wave. Light and radio waves are transverse waves

 Longitudinal waves vibrate parallel to the direction of travel of the wave. Sound waves are longitudinal.