Lesson 3 (part 2)
Which of the following identifies the location inside the earth where the energy from an earthquake is released?
Focus
The location on the earth's surface directly above the point where the earthquakes energy is released.
Epicenter
Continental crust is thicker and less dense the oceanic crust. (true or false)
True
Which of the following describes a plate boundary where the plates meet and slide past each other?
Transform
Subduction occurs when....
Continental and oceanic plates converge
If there was an earthquake in Sitka AK which of the following would arrive first in Hawaii?
Tsunami
Which of the following is a seismograph NOT able to record?
Intensity
The amount of force being applied to a rock is known as .....
Stress
Name of the physical feature formed at a convergent plate boundary where oceanic and continental crust meet.
Trench
Which rock type forms when existing rocks are exposed to heat and pressure over long periods of time?
Metamorphic
Which of the following describes the difference between to arrival times of P-waves and S-waves?
Lag time
A seismogram is an instrument that detects seismic waves. (true or false)
False
The physical property of a rock that causes it to fracture when a force is applied to it.
Brittle
Name of the physical feature formed at a divergent plate boundary where plates made of oceanic crust move away from each other.
Mid-ocean ridge
Which rock type forms when sediments become compacted and cemented together?
Sedimentary
If a seismic station is 4500 km from an earthquake's epicenter, how many minutes would it take the S-wave to arrive?
14
Which of the following describes a plate boundary where the plates are moving away from each other in opposite directions?
Divergent
The variable in an experiment that is purposely changed in order to determine its effect.
Independant
Which rock type forms when magma or lava cools and crystalizes on or below the Earth's surface?
Igneous
The farther seismic waves get from the source of an earthquake the smaller the lag time between them gets. (true or false)
false
Which of the following describes a plate boundary where the plates are move toward each other from each other?
Convergent
The variable in an experiment whose value is determined/measured and used to answer the question of the experiment.
Dependant
Which of the following forms when rain, wind, snow or other environmental agent breaks rocks into pieces?
Sediments