Unit 4, Chapter 10 Review (Plate Tectonics)

Front

What does the Moment Magnitude Scale measure?

Back

Energy release of earthquakes.

Front

The Richter scale rates earthquakes based on:

Back

Size of the seismic waves.

Front

What happens at a plate boundary where new material is produced?

Back

Old crust would be destroyed by subduction.

Front

What is the half-life of an isotope?

Back

The time required for half of the parent isotope to decay.

Front

If Farissium-33 has a half-life of 400 years, what percent of the parent isotope remains after 800 years?

Back

25%.

Front

How long does it take for Carbon-14 to decay from 4.0 g to 0.50 g?

Back

17,100 years.

Front

What is subduction in plate tectonics?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

Define tectonic plates.

Back

Large slabs of Earth's lithosphere that move and interact at their boundaries.

Front

What is the theory of plate tectonics?

Back

The theory that explains the movement of Earth's plates and the associated geological phenomena.

Front

What is an earthquake?

Back

A sudden release of energy in the Earth's crust that creates seismic waves.