Tennessee Science Grade 7

Chapter 11: Earthquakes and Volcanoes

Earthquakes and Volcanoes

1
Why don’t cinder cone eruptions last long?
A)because cinder cone eruptions are caused by low gas content.
B)because gas content is not involved with cinder cone eruptions
C)because cinder cone eruptions are caused by high gas content
D)because cinder cone eruptions are caused by high water content.
2
Which form of energy is transformed into seismic waves during an earthquake?
A)kinetic energy
B)fusion
C)potential energy
D)radiation
3
What is the cause of the vibrations felt during an earthquake?
A)rocks breaking under pressure
B)all answers are correct
C)elastic rebound
D)forces pushing/pulling on rocks
4
What is tephra?
A)lava that has cooled in midair after an eruption
B)lava that is slowly released from fissures
C)very fluid lava
D)lava that cools beneath the surface before an eruption
5
What dictates the type of fault formed when a surface breaks?
A)the way in which the forces are applied to a rock
B)the weather conditions at the time of the faulting
C)the type of soil involved at the location of the fault
D)the current barometric pressure
6
Which waves cause the most damage during an earthquake?
A)ones that travel along the surface
B)ones that travel deep within Earth
C)ones that only travel downward
D)ones that travel perpendicular to the mantle
7
How do seismologists predict earthquakes?
A)They measure movement along fault lines.
B)They monitor groundwater levels.
C)They measure the electrical conductivity of rocks.
D)all answers are correct
8
What do colliding plates have to do with volcanoes?
A)The plates that separate create a volcano.
B)The plate that gets pushed up creates a volcano.
C)Colliding plates have nothing to do with volcanoes.
D)The plate that gets pushed underground melts to become magma.
9
What is the cause of the Pacific Ring of Fire?
A)the Pacific Ocean itself
B)converging plate boundaries
C)compressing plate boundaries
D)diverging plate boundaries
10
Which waves cause particles to vibrate at right angles to the direction in which they are moving?
A)S-waves
B)P-waves
C)sound waves
D)seismic waves
11
How does the Richter scale measure the energy an earthquake releases?
A)It records the type of waves.
B)It records the distance between the waves.
C)It records the height of the waves.
D)It records the timing of the waves.
12
What kind of lava is most explosive?
A)lava that is high in magnesium
B)lava that is high in iron
C)lava that is low in silica
D)lava that is high in silica
13
How are strike-slip faults formed?
A)Gravitational forces form them.
B)Shear forces form them.
C)Slip forces form them.
D)Strike forces form them.
14
How do seismographs approximate the location of an epicenter?
A)The arrival times have nothing to do with approximating the earthquake's location.
B)The farther apart the arrival times of the different waves are, the farther away the earthquake is.
C)The closer the arrival times of the different waves are, the farther away the earthquake is.
D)The farther apart the arrival times of the different waves are, the closer the earthquake is.
15
Why do so many volcanoes form on divergent and convergent plate boundaries?
A)These plate separate to create volcanoes.
B)Converging and diverging plates have nothing to do with volcanoes.
C)These plates get pushed up and create volcanoes
D)because melting plates cause magma to form beneath the surface
16
Compression forces cause __________ faults.
A)tension
B)reverse
C)slip
D)normal
17
What is the point on Earth's surface where an earthquake's energy is received?
A)epicenter
B)equator
C)focus
D)center
18
How would you describe lava with a high viscosity?
A)fluid
B)thick
C)smooth
D)watery
19
What is the connection between volcanoes and plate tectonic movement?
A)No connection exists between volcanoes and plate tectonic movement.
B)Plate movement causes rocks to melt into magma.
C)Plate movement causes rock to harden and cool underground.
D)Volcanoes cause plate tectonic movement.
20
Which earthquake causes the most damage?
A)intensity III
B)intensity Vlll
C)intensity Xll
D)intensity IV
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.