Earthquakes

Which of the following earthquake waves is first recorded on the Seismograph?

• P-waves

• Rayleigh waves

• S-waves

• Love waves

Which theory is acclaimed as a satisfactory explanation about the cause of earthquakes?

• Elastic Rebound theory

• Clastic theory

• Tremors theory

• Seismology theory

From where earthquake waves are generated?

• Focus

• Epicenter

• Solid inner Core

• None of these

What is the point on the ground vertically above the focus called?

• Surface

• Main Center

• Epicenter

• Hypocenter

Which instrument is used to measure the magnitude of an earthquake?

• Anemometer
  

• Thermometer

• Seismometer

• Barometer

If a P wave were to go from a solid to a liquid - what would happen to it's velocity?

• Stay the same

• Increase

• Increase by double

• Decrease

In general, the most destructive earthquake waves are the

• P waves

• S waves

• Surface waves

• P and S waves

How do rock particles move during the passage of a P wave through the rock

• back and forth parallel to the direction of wave travel

• perpendicular to the direction of wave travel

• in a rolling elliptical motion

• in a rolling circular motion

• هههه

• هههههههه

• ههههههههههههه

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أشطر الشاطرين

• جنة بس هي علمي رياضة

• نغم بس

• ياسمين بس

• نغم و ياسمين