Plate Tectonics practice test
1) Earthquakes are
a) cracks and fissures in the earth.
b) a sudden release of energy when rock sections break.
c) any kind of shaking of the earth.
2) Tectonic plates are
a) huge pieces of the earth’s lithosphere that move in relation to each other
b) parts of earth’s crust that are broken into bits
c) continents that move around the earth.
3) The seismic zone that circles the Pacific Ocean is known as
a) The Mid-Atlantic Ridge
b) The pacific circlet
c) The Ring of Fire
4) One area on earth where continental plates are colliding is
a) India
b) Japan
c) California
5) When an oceanic plate converges with another plate this happens
a) sea floor spreading
b) subduction
c) mountain building
6) Mountains can be made when
a) Continental plates converge
b) volcanoes erupt
c) both a and b
7) When ocean plates diverge, this is formed between them
a) a ridge
b) a trench
c) a rift
8) Trenches in the ocean are a result of
a) volcanic activity
b) subduction
c) transformation
9) This is happening at the Mid-Atlantic Ridge.
a) sea floor spreading
b) trench formation
c) modeling
10) Tectonic plates are moved around on the surface by
a) the Earth’s gravity
b) The spinning of the Earth
C) convection in the mantle
11) The magnitude of an earthquake is
a) how much damage it does
b) how much energy is released
c) how far away it was
12) A Seismogram is
a) the tool used to measure an earthquakes strength
b) the paper “picture” that is made by the tool used to measure an earthquake
c) a photograph of an earthquake
13) The fastest of the earthquake waves is the
a) Rayleigh wave
b) S-wave
c) P-wave
14) The surface wave that moves in a side to side motion like an S-wave is
a) the P-wave
b) The Rayleigh wave
c) the Love wave
15) Which picture correctly shows the focus and epicenter of an earthquake if the epicenter is red and the
focus is blue?
a)
b)
c)
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16) Scientists who thought the continents were all connected by land bridges were
a) right
b) wrong
c) they never thought that
17) Look at this seismogram. About shat time did the P wave arrive and what time did the S wave arrive?
7:00
7:10
7:20
7:30
a) 7:20 and 7:50
7:40
7:50
8:00
8:10
b) 7:00 and 7:20
18) Which of these sentences is correct?
a) the inner core is liquid and the outer core is solid’
b) the outer core is liquid and the inner core is solid
c) the inner and outer core are both solid
c) 7:50 and 8:10
19) The Asthenosphere is
a) cold and brittle
b) warm and brittle
c) warm and ductile
20) Two types of earthquake waves that move in an up and downmotion are
a) Love waves and S-waves
b) P-waves and Rayleigh waves
C) P and S waves
21) The two types of waves that move through the body (middle) of the earth are
a) love and s-waves
b) p-waves and Rayleigh waves
c) P and S waves
22) Tall volcanoes made from alternating layers of ash and lava are called
a) cinder cones
b) shield volcanoes
c) composite volcanoes
23) rocks that are formed from hardened lava or magma are called
a) igneous
b) metamorphic
c) sedimentary
24) rocks that are formed from cemented together pieces of other rocks are called
a) igneous
b) metamorphic
c) sedimentary
25) Some of the bad (harmful) effects of volcanoes are
a) flash floods, rock falls, mud flows, water contamination
b) ash clouds, geothermal energy, earthquakes
c) natural products, fertile soil, geothermal energy