e.g. Earthquake (BODY WAVES AND SURFACE WAVES , 2 TYPES OF BODY WAVES)

Question 1

travel fastest at a speed between 4-8 km/s at Earth’s crust, hence, they are the first to arrive at a location.

the “fastest” wave and can be called a push or pull wave, because it moves by contracting and expanding along a horizontal path as demonstrated in your slinky experiment.

Answer 1

Compressional or Primary(P) Waves

Question 2

usually travel at 2.5 to 4 km/s and can only travel through solid materials unlike the P-waves, which can move through all states of matter.

are shear waves and move from side-to-side. The particle motion in shear waves is perpendicular to the direction of the wave.

Answer 2

Shear or Secondary(S) Waves

Question 3

• Transverse
• slow moving
• travel through solids only

Answer 3

S waves

Question 4

• Longitudinal
• fast moving
• travel through liquids and solids only

Answer 4

P waves