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WorksheetsMechanisms of Plate motion
Total questions: 10
Worksheet time: 5mins
What are the mechanisms that have been proposed to explain the movement of Earth’s tectonic plates?
ridge push, slab pull, continental drift
mantle convection, ridge push, slab pull
slab pull, sea floor spreading, mantle convection
seafloor spreading, continental drift, plate tectonic
Which of the following is a correct pairing?
ridge: convection
subduction zone: slab pull
earth’s core : gravitational sliding
asthenosphere: radioactive decay
What causes ridge-push to occur?
Large quantities of new rocks near the ridge
Hot buoyant mantle beneath the ridge causing it to become elevated
Both is correct
None is correct
Which of the following phenomena is/are result of slab pull?
Volcanic activities
Faster plate velocities
Both are correct
None is correct
Why do researchers think that slab pull is a major driving force of plate motion?
Plates experiencing slab pull move faster.
Slab pull is the most common plate motion on earth.
Researchers have no proof that slab pull is important.
None
What forms when hot rock within the mantle rises, cools down and then sinks back down to the core?
Induction cells
Tectonic plates
Convection cells
Fluctuation zones
When plates that are higher at the spreading center flow downhill with the help of gravity and eventually flatten out to the ocean floor, we call that ____________.
slab pull
ridge push
subduction
sea floor spreading
As the edge of a tectonic plate sinks back into the mantle, gravity (or its own weight) can assist its movement downward. This is known as ____________.
Slab pull
Slab push
Ridge push
Convection push
Which of the following is true?
The colder the rocks, the less dense it is so it rise.
The hotter the rocks, the denser it is so it will sink.
The colder the rocks, the denser it is so it will sink.
The hotter the rocks, the less dense it is so it will sink.
Which of the following figures best illustrate ridge push?
