Earthquakes and Seismic Waves
Physics ⇒ Earth and Space Physics
Earthquakes and Seismic Waves starts at 7 and continues till grade 12.
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See sample questions for grade 8
A seismograph at Station A records a P wave 30 seconds before the S wave. If the average speed of P waves is 6 km/s and S waves is 3.5 km/s, estimate the distance from Station A to the earthquake epicenter.
Describe how earthquake-resistant buildings help reduce damage during earthquakes.
Describe the difference between P waves and S waves.
Describe what a seismogram shows.
Describe what aftershocks are and why they occur.
Describe what happens at a transform plate boundary to cause earthquakes.
Explain how scientists locate the epicenter of an earthquake using seismic data.
Explain what causes most earthquakes.
Explain why S waves do not travel through the Earth's outer core.
Explain why surface waves are generally more destructive than body waves.
What is a fault in the context of earthquakes?
What is the point inside the Earth where an earthquake starts called?
Which instrument is used to detect and record earthquakes?
