What is a longitudinal wave GCSE?

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. Longitudinal waves show areas of compression and rarefaction .

What is infrasound GCSE?

Earthquakes produce low frequency sound waves (infrasound), known as P-waves. These waves pass through the Earth’s centre and can be detected at various points around the Earth using seismometers.

How are waves formed GCSE geography?

Waves are formed when the wind blows across the surface of the sea. The friction between the wind and the water pushes the water up creating waves. The height and power of a wave depends on two factors: The distance it has had to travel across open water to reach the coastline.

What is the difference between longitudinal and transverse waves GCSE?

In longitudinal waves , the vibrations are parallel to the direction of wave travel. In transverse waves , the vibrations are at right angles to the direction of wave travel. Mechanical waves cause oscillations of particles in a solid, liquid or gas and must have a medium to travel through.

What are 2 types of waves?

Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.

What are the two types of waves geography?

There are two different types of wave – constructive and destructive. They can affect the coastline in different ways. When a wave reaches the shore, the water that rushes up the beach is known as the swash .

What is an example of infrasound?

What is Infrasound? For example, some animals, such as whales, elephants and giraffes communicate using infrasound over long distances. Avalanches, volcanoes, earthquakes, ocean waves, water falls and meteors generate infrasonic waves.

What type of waves are infrasound waves?

Infrasonics, vibrational or stress waves in elastic media, having a frequency below those of sound waves that can be detected by the human ear—i.e., below 20 hertz. The range of frequencies extends down to geologic vibrations that complete one cycle in 100 seconds or longer.

What are the 2 types of waves?

What are 4 types of waves?

Electromagnetic Wave

• Microwaves.
• X-ray.
• Radio waves.
• Ultraviolet waves.

What is the range of an infrasonic wave?

Infrasonics, vibrational or stress waves in elastic media, having a frequency below those of sound waves that can be detected by the human ear—i.e., below 20 hertz. The range of frequencies extends down to geologic vibrations that complete one cycle in 100 seconds or longer. In nature such waves

How are infrasonics related to the physics of sound?

Coauthor of The Physics of Sound. Infrasonics, vibrational or stress waves in elastic media, having a frequency below those of sound waves that can be detected by the human ear —i.e., below 20 hertz. The range of frequencies extends down to geologic vibrations that complete one cycle in 100 seconds or longer.

How are infrasound waves used to study the Earth?

Infrasound can be used to investigate the internal structure of our planet, just like ultrasound is used for foetal scanning. Earthquakes produce very powerful seismic waves that can be classed as infrasound waves. Seismic waves from large earthquakes are detected around the world.

Where are the infrasound stations in the world?

The UAF-GI operates infrasound stations in Fairbanks and Dillingham, Alaska, as well as a number of other locations worldwide. Seismometers also occasionally detect infrasound waves, as the sound energy may shake the ground near the seismometer creating a “ground-coupled airwave”.