What is a rarefaction in a longitudinal wave?
9.2 Compression and rarefaction (ESACT)A compression is a region in a longitudinal wave where the particles are closest together. Rarefaction. A rarefaction is a region in a longitudinal wave where the particles are furthest apart.
Can longitudinal waves travel through solids?
In a longitudinal wave, the particles of the medium move parallel to the wave’s direction of travel. While a longitudinal wave can travel through solids, liquids and gases, transverse waves can only travel through solids.
What does it mean when the compressions of a longitudinal wave are far apart?
Compressions and RarefactionsPlaces where particles of a medium crowd closer together are called compressions, and places where the particles spread farther apart are called rarefactions. The more energy the wave has, the closer together the particles are in compressions and the farther apart they are in rarefactions.
What does a longitudinal wave do?
Sound as a Longitudinal WaveFor a sound wave traveling through air, the vibrations of the particles are best described as longitudinal. Longitudinal waves are waves in which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport.
What are the two types of waves?
There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. The animations below demonstrate both types of wave and illustrate the difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling.
What are examples of longitudinal waves?
Examples of longitudinal waves include: sound waves. ultrasound waves. seismic P-waves.
- ripples on the surface of water.
- vibrations in a guitar string.
- a Mexican wave in a sports stadium.
- electromagnetic waves – eg light waves, microwaves, radio waves.
- seismic S-waves.
Can longitudinal waves travel in a vacuum?
Yes, a vacuum. Longitudinal waves need a medium to compress. The particles are pushed and pulls to form areas of compression and rarefraction. However in a vacuum this is not possible as it is empty – no medium – no particles!
Do all longitudinal waves need a medium?
A longitudinal wave (sound) is always produced perpendicular to a transverse wave (light), and light does not require a medium in order to propagate, so why do so many people say that sound requires a medium to propagate? This wave of squished and stretched spacetime is a longitudinal wave just like sound.
How do longitudinal waves travel?
For a sound wave traveling through air, the vibrations of the particles are best described as longitudinal. Longitudinal waves are waves in which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport.
What is it called when the particles are close together in a longitudinal wave?
In a longitudinal wave, particles of the medium vibrate in a direction that is parallel to the direction that the wave travels. Places where particles of the medium crowd closer together are called compressions. Places where particles of the medium spread farther apart are called rarefactions.
What is the distance between Rarefactions called?
The distance between two consecutive compressions or rarefactions in a wave is called wavelength.
What type of energy is transferred by longitudinal waves?
In longitudinal waves, the oscillations are along the same direction as the direction of travel and energy transfer. Sound waves and waves in a stretched spring are longitudinal waves. P waves are also longitudinal waves.