longitudinal waves

Longitudinal waves are defined as:

Waves where the points along its length vibrate parallel to the direction of energy transfer

in what direction is the energy transfer in relation to the wave motion?

The energy transfer is in the same direction as the wave motion

what do longitudinal waves transfer?

They transfer energy, but not the particles of the medium

in what can longitudinal waves move in?

• They can move in solids, liquids and gases

• They can not move in a vacuum (since there are no particles)

what are the two key features of longitudinal waves (where the points are)

• Close together, called compressions

• Spaced apart, called rarefactions

what are some examples of longitudinal waves

• Sound waves

• P-waves (a type of seismic wave)

• Pressure waves caused by repeated movements in a liquid or gas

how are longitudinal waves drawn?

• Longitudinal waves are usually drawn as several lines to show that the wave is moving parallel to the direction of energy transfer

  • Drawing the lines closer together represents the compressions

  • Drawing the lines further apart represents the rarefactions