Waves S3 Flashcards
What are the types of waves?
Waves can be longitudinal or transverse.
What types of waves travel through the layers of the earth?
Seismic waves.
What are the types of seismic waves?
P waves and S waves
What do transverse waves have?
They have oscillatons.
What’s the amplitude of a wave?
This is how high the wave is.
What’s the wavelength of a wave?
This is the distance betweeen two corresponding points on the wave and it is measured in meters.
What’s the frequency?
This is how many waves pass by every second and is measured in Hertz.
What’s the wave equation?
Wave speed (v)(m/s) = frequency (f)(Hz) x wavelength (m)
What is a P wave?
P-waves (P stands for primary) arrive at the detector first. They are longitudinal waves which mean the vibrations are along the same direction as the direction of travel. Other examples of longitudinal waves include sound waves and waves in a stretched spring.
What is a S wave?
S-waves (S stands for secondary) arrive at the detector of a seismometer second. They are transverse waves which mean the vibrations are at right angles to the direction of travel. Other examples of transverse waves include light waves and water waves.
Explain what a transverse wave is.
The vibration of particles in the medium is perpendicular to the direction of propagation of the wave.
The transverse wave propagates in the form of crests and troughs.
Explain what a longitudinal wave is.
The vibration of particles in the medium is parallel to the direction of propagation of wave.
The congitudinal wave propagates in the form of compressions and rarefractions.
