Earthquakes and Plate Tectonics

Which is true of P waves?

• slower than S waves

• can travel through solids and liquids

• can travel though solids, only

• are also called shear waves

Tags

NGSS.MS-PS4-2

How long does it take a P-wave to travel 4000 kilometers according to the Earthquake P-Wave and S-Wave Travel Time Reference Table?

• 4 minutes

• 5 minutes

• 6 minutes

• 7 minutes

What technology helped geologists to discover that the seafloor had both trenches and mid-ocean ridges?

• radar

• telescopes

• computers

• cell phones

Tags

NGSS.MS-ESS2-3

What feature under the ocean resembles mountains on land?

• volcanoes

• trenches

• rift valleys

• mid-ocean ridges

Which of the following in true about the ages of rocks on the seafloor?

• The oldest rocks are near mid-ocean ridges.

• The youngest rocks are near mid-ocean ridges.

• Rock ages are basically the same across the entire sea floor.

Tags

NGSS.MS-ESS1-4

At which type of plate boundary are two plates moving away from each other?

• divergent

• convergent

• transform

According to the Tectonics Plates reference table, what type of tectonic plate boundary is found at the Mid-Atlantic Ridge?

• convergent

• divergent

• transform

Which type of heat transfer is responsible for the movement of the lithospheric plates?

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-ESS2-3

The exact place where an earthquake occurs is called the

• focus

• epicenter

• nucleus

• core

Tags

NGSS.MS-ESS2-3

Why are there S-wave shadow zones?

• S-waves cannot travel through solids.

• S-waves cannot travel though liquids.

• S-waves cannot travel though the lithosphere.

• S-waves cannot travel through the mantle.

Tags

NGSS.MS-PS4-2