End of year 9 exam 1

Question 1

what is a Tectonic plate

Answer 1

large section of the Earth’s crust.

Question 2

Plate Tectonics

Answer 2

the theory concerning the structure of the earth and the processes
occurring which explain the configuration of the continents and
the location of earthquakes and volcanic activity.

Question 3

Destructive plate boundary

Answer 3

a plate boundary where the plates move towards each other and
where one is subducted beneath the other and so is destroyed as
it returns to the mantle.

Question 4

Constructive plate
boundary

Answer 4

a plate boundary where the relative movement of the crustal
plates is apart from each other allowing magma to rise from the
mantle and solidify to construct new crust.

Question 5

Conservative plate
boundary

Answer 5

where the two crustal plates try to move past one another.

Question 6

Collision plate boundary

Answer 6

where two continental plates move towards each other.

Question 7

Epicentre

Answer 7

point in the surface directly above the focus of an earthquake.

Question 8

Focus

Answer 8

the actual point within the crust where the energy was released.

Question 9

Seismic waves

Answer 9

waves of energy released by an earthquake

Question 10

Seismometer

Answer 10

an instrument used to detect and record seismic waves.

Question 11

Richter Scale

Answer 11

measures the energy released during an earthquake. Runs from 1
to 10 on a logarithmic scale i.e. each level increase is 10x stronger

Question 12

Tsunami

Answer 12

a large wave(s), caused when an earthquake displaces the water
above