WorksheetsForces of the Earth
Total questions: 33
Worksheet time: 23mins
What type of stress pushed a mass of rock in 2 opposite directions?
(a)
Check all the landforms created by shearing
transform faults
fault zones
mountains
rift valley
What Squeezes rock until it folds or breaks
(a)
What landforms are NOT formed by Compression?
mountain ranges
ocean trenches
volcanic arcs
mid-ocean ridges
Pulls on the crust, stretching rock and becomes thinner
(a)
Which landforms are created by tension
mid-ocean ridges
continental rifts
rift valleys
mountains
Forces pull rocks apart along a divergent plate boundary
normal fault
strike slip fault
convergent boundary
tension
where a block of rock above the fault moves down
(a)
two blocks of rock slide horizontally past each other in opposite directions...what type of fault is that?
(a)
Force pushes two blocks of rock together with the rock above the fault moving UP
Reverse Fault
Normal Fault
Strike Fault
Slip Fault
A reverse fault pushed together where rock above the fault moves (a)
Point Beneath the earth's surface causing the earthquake
focus
epicenter
The epicenter is the point on the (a) of the earth
The Focus is:
point beneath the earth
where the rock under stress breaks
the stress/break causes an earthquake beneath the earth
on the surface of the earth
Seismic Waves carry (a) of an earthquake away from the focus
What type of landforms does compression create?
mountains
rift valleys
Strike-slip
What type of fault is this?
normal fault
reverse fault
strike-slip fault
Shearing stress cause
normal fault
reverse fault
strike slip fault
This type of stress creates mid-ocean ridges and continental rifts.
shearing
tension
compression
Compared to P waves and S waves, surface waves move (a) .
A major volcanic belt known as the (a) circles the Pacific Ocean.
What does a seismograph record?
the Mercalli scale rating for an earthquake
the speed of tsunami waves
the ground movements caused by seismic waves
the location of the epicenter
To tell how far an earthquake’s epicenter is from a seismograph, scientists measure the difference between the ____.
arrival times of the P waves and S waves.
speeds of the surface waves and S waves.
strengths of the P waves and S waves.
What is the minimum number of seismograph stations required in order to determine the exact location of an earthquake’s epicenter?
(a)
What triggers the small earthquakes that occur around a volcano before an eruption?
lava movements
upward movement of magma
pyroclastic flow
When groundwater heated by magma rises to the surface and collects in a natural pool, it is called a (a) .
Earthquakes are the vibrations in the ground that result from movement along breaks in the lithosphere called ___________.
faults
cracks
rocks
epicenters
____________ is the process when scientists use 3 or more seismometers to accurately locate an earthquake.
seismology
angulation
triangulation
fault tracking
The Richter scale measures the _________ during an earthquake.
ground motion
surface damage
injury to people
Scientists discovered changes in Earth's interior by studying ____.
GPS data
changes in seismic waves
satellites
deep wells dug into the mantle
When the force on rocks is great enough, they break, producing vibrations called (a) .
