Science

1. What is the main cause of seismic waves?

• Earthquake

• Thunder

• Traffic

• Volcano

2. What type of wave is P wave?

• Electromagnetic

• Longitudinal

• Transverse

• Ultrasonic

3. Why is there an abrupt change in the speed of seismic waves as they travel inside the Earth? It is because seismic waves are ___________.

• colliding

• overtaking the compressional waves

• passing through a material with the same density

• going into a material with different properties and densities

Which of the following travels the fastest and is detected first in the seismic station?

• Love wave

• Surface wave

• Primary wave

• Secondary wave

Which kind of waves does NOT travel through a liquid?

• Love

• Primary

• Secondary

• Surface

What type of seismic waves are responsible for a destructive earthquake?

• Love

• Primary

• Secondary

• Surface

How do rock particles move during the passage of primary waves?

• no motion

• in circular motion

• back and forth parallel to the direction of the waves

• back and forth perpendicular to the direction of the waves

If P wave passes through solid to liquid media, what will happen to its velocity?

• increases

• decreases

• speeds up

• stays the same

What consist of a body wave?

• primary and Love waves

• surface and primary waves

• secondary and surface waves

• primary and secondary waves

What is the most destructive seismic wave?

• Primary

• Secondary

• Shear

• Surface