Exploring Page 11 ESRT 1 Concepts

What type of waves are P waves and S waves?

• Sound waves

• Seismic waves

• Light waves

• Electromagnetic waves

Which type of wave arrives at the seismic station first?

• Surface waves

• S waves

• P waves

• Rayleigh waves

What does the vertical axis of the graph represent?

• Distance in kilometers

• Time in minutes

• Amplitude

• Frequency

How many seconds are represented by each segment between the minutes on the vertical axis?

• 10 seconds

• 15 seconds

• 30 seconds

• 20 seconds

What does the horizontal axis of the graph represent?

• Amplitude

• Frequency

• Distance in thousands of kilometers

• Time in minutes

If the horizontal axis shows 5, 6, 7, what are these values in actual distance?

• 5,000, 6,000, 7,000 kilometers

• 500,000, 600,000, 700,000 kilometers

• 500, 600, 700 kilometers

• 50,000, 60,000, 70,000 kilometers

How long does it take an S wave to travel 5,000 kilometers?

• 12 minutes

• 18 minutes

• 10 minutes

• 15 minutes

If an S wave travels 5,000 kilometers, which curve should you follow on the graph?

• S wave curve

• Both curves

• Neither curve

• P wave curve

If a P wave takes 6 minutes and 20 seconds to reach a recording station, how far is the station from the epicenter?

• 3,500 kilometers

• 2,500 kilometers

• 3,000 kilometers

• 4,000 kilometers

When given a time for a P wave, which axis should you start with on the graph?

• Horizontal axis

• Neither axis

• Vertical axis

• Both axes