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WorksheetsPlate Tectonics & Earthquakes
Total questions: 20
Worksheet time: 27mins
Divergent plates move away from each other. What feature is most likely found at a divergent plate boundary?
Mountain range
Mid-Ocean Ridge
Plateau
sand bars
The Ring of Fire is an area along the edge of the Pacific Ocean with many volcanoes. Which of these geologic areas is where rock is recycled by one tectonic plate sliding underneath another tectonic plate?
a strike-slip fault
a subduction zone
a rift valley
a divergent boundary
There have not been any earthquakes reported in the interior of the content of Africa. Why?
The mountains in Africa do not cause pressure to build up in the lithosphere.
The entire continent of Africa is located on a single continental tectonic plate.
The landmass of Africa is too small to form earthquakes.
The plate boundary inside Africa is too small to form earthquakes.
Which of the following statements best explains why earthquakes occur more frequently in California than in Florida?
California is located on the boundary of two crustal plates, but Florida is not.
The rock under California is soft, but the rock under Florida is hard.
Rock found in California is sedimentary, but rock found in Florida is igneous.
California is located on a continental plate, but Florida is not.
What instrument do scientists use to measure seismic waves?
Thermometer
Barometer
Seismograph
Spectrometer
When pressure builds between two tectonic plates, it can suddenly release, causing:
An earthquake
A volcano eruption
Convection currents
Stronger gravitational pull
The place where two plates come together is known as a _______
Transform boundary.
Divergent boundary.
Convergent boundary.
Subduction zone.
A place where two plates slip past each other, moving in opposite directions, is known as a _______.
transform boundary
divergent boundary.
convergent boundary.
subduction zone.
The point beneath Earth's surface where rocks break and triggers an earthquake.
epicenter
seismic waves
focus/hypocenter
magnitude
What is thought to cause the movement of the tectonic plates?
Gravity
Convection currents
Wave motion
Seismic activity
What is the process of convection?
The process of hot material rising and cooler material sinking in circular patterns
The process of hot rock solidifying and forming new crust
The process of explaining what goes up must come down
Strong ocean currents moving tremendous amounts of material
Mountains are created along
Transform boundaries
Continental-Continental Convergent
Divergent
Oceanic-Continental Convergent
Subduction zones occur along
Transform boundaries
Continental-Continental boundaries
Divergent boundaries
Oceanic-Continental boundaries
Convection currents are thought to occur in the (a) layer of Earth.
When earthquakes are measured on the Richter scale, a magnitude 7 earthquake is 1000x more powerful than a magnitude _ earthquake. (THE ANSWER MUST BE A NUMBER)
(a)
p-waves from an earthquake are the (a) waves to arrive at a seismograph.
The (a) a seismograph is from the epicenter of an earthquake can be calculated by measuring the time difference between the arrival of the "p" and "s" waves.
s-waves cause the crust to move ...
up and down, vertically.
side to side, horizontally.
at an angle diagonally.
in a circular motion.
