Can someone help me with these multiple choice questions on Earthquake waves: 1.
ID: 112417 • Letter: C
Question
Can someone help me with these multiple choice questions on Earthquake waves:
1. Which seismic wave vibrates side-to-side relative to its direction of travel?
surface wave
P wave
S wave
Rayleigh wave
2. The two kinds of body waves are
surface waves and P waves.
Love waves and P waves.
P waves and S waves.
Love waves and S waves.
3. The following seismic waves are used to locate earthquake epicenters:
surface waves and P waves.
Rayleigh waves and P waves.
P waves and S waves.
surface waves and S waves.
surface wave
P wave
S wave
Rayleigh wave
Explanation / Answer
2)P and S waves
Body waves are of two types: compressional or primary (P) waves and shear or secondary (S)waves. P- and S- waves are called "body waves" because they can travel through the interior of a body such as the Earth's inner layers, from the focus of an earthquake to distant points on the surface.
3)P and S waves
The arrival times of P and S waves are used to determine the distance to an earthquake using standard travel-time curves. P & S waves each shake the ground in different ways as they travel through the Earth. P waves are faster than S waves so by looking at seismograms, scientists can accurately locate the epicenter as well as the hypocenter, or focus of the earthquake at depth.