EOSC 114 Exam 2025 Questions with
Correct Answers
Fragile Systems
In terms of population growth, the phrase "doubling time" refers to ______.
a)linear growth
b)period of time for the population to increase by 2 percent
c)70 years
d)two times the annual growth rate
e)period of time required to double the present population - Answers -✔✔ period of time
required to double the present population
Fragile Systems
Which disaster is related to the dilution of energy?
a)Hurricanes
b)Thunderstorms
c)Volcanoes
d)Floods
e)Earthquakesr - Answers -✔✔ Floods
Fragile Systems
Fluids that greatly resist deformation, and thus flow very, very slowly, have ______
viscosity.
a)zero
b)medium
c)low
d)high
e)infinite - Answers -✔✔ High
Fragile Systems
If you push twice as hard on an object and it moves twice as far, the work you do is
______ as much.
a)½
b)four times
c)exactly
d)twice
e)¼ - Answers -✔✔ four times
Fragile Systems
,Why have fatalities from natural disasters been increasing over the last century?
a)population is increasing
b)the numbers have not changed, we're now more aware about disasters
c)natural disaster events have been getting less frequent but more destructive
d)natural disaster events (such as earthquakes, etc.) have been getting more frequent
e)natural disaster events have been getting more destructive - Answers -✔✔ population
is increasing
Fragile Systems
In developed countries such as Canada where population levels are increasing, we can
expect economic losses due to natural disasters to ______.
a)remain steady at about $80 billion per year
b)increase significantly
c)remain near zero
d)decrease exponentially
e)remain nearly constant - Answers -✔✔ increase significantly
Fragile Systems
When you raise an object twice as high, the potential energy increases by a factor of
______.
a)a half
b)two
c)four
d)one
e)an order of magnitude - Answers -✔✔ two
Fragile Systems
Which of the following best describes the changes energy might go through to become
an earthquake?(Note: ↠ means "transformed to")
a)heat from the Earth ↠ kinetic energy in the mantle ↠ potential energy in the rock ↠
kinetic energy of the earthquake
b)kinetic energy from the Earth ↠ heat energy in the mantle ↠ potential energy in the
rock ↠ kinetic energy of the earthquake
c)potential energy from the Earth ↠ potential energy in the mantle ↠ potential energy in
the rock ↠ kinetic energy of the earthquake
d)kinetic energy in the mantle ↠ heat from the Earth ↠ potential energy in the rock ↠
kinetic energy of the earthquake
e)heat from the Earth ↠ potential energy in the mantle ↠ kinetic energy in the rock ↠
kinetic energy of the earthquake - Answers -✔✔ heat from the Earth ↠ kinetic energy in
the mantle ↠ potential energy in the rock ↠ kinetic energy of the earthquake
Fragile Systems
, A force per unit area applied perpendicular to an object's surface is called ______.
a)stress
b)strain
c)work
d)power
e)pressure - Answers -✔✔ pressure
Fragile Systems
Which statement is CORRECT? In the ______, the first and second most abundant (by
mass) elements are ______.
a)Earth's core... iron and nickel
b)ocean... hydrogen and chlorine
c)atmosphere... oxygen and argon
d)Earth's crust... silicon and hydrogen
e)Earth's crust... oxygen and aluminum - Answers -✔✔ Earth's core... iron and nickel
Fragile Systems
Why are many disaster intensities quantified using a logarithmic scale?
a)Many disasters are cyclic.
b)Earthquakes are more powerful than tornadoes.
c)Scientists like to confuse the public by using complicated disaster scales.
d)More intense disasters happen less frequently than weaker disasters.
e)Disaster intensities vary by many orders of magnitude. - Answers -✔✔ Disaster
intensities vary by many orders of magnitude.
Fragile Systems
An object that breaks when stresses are applied is called ______.
a)elastic
b)brittle
c)malleable
d)plastic
e)ductile - Answers -✔✔ brittle
Fragile Systems
A valid way to represent the mass of 10,000 kg is ______.
a)10 kg
b).0 × 104 g
c)0.010 × 109 Mg
d)10 × 106 mg
e)1 × 10 to the power of 7 (g) - Answers -✔✔ 1 × 10 to the power of 7 (g)
Fragile Systems
Correct Answers
Fragile Systems
In terms of population growth, the phrase "doubling time" refers to ______.
a)linear growth
b)period of time for the population to increase by 2 percent
c)70 years
d)two times the annual growth rate
e)period of time required to double the present population - Answers -✔✔ period of time
required to double the present population
Fragile Systems
Which disaster is related to the dilution of energy?
a)Hurricanes
b)Thunderstorms
c)Volcanoes
d)Floods
e)Earthquakesr - Answers -✔✔ Floods
Fragile Systems
Fluids that greatly resist deformation, and thus flow very, very slowly, have ______
viscosity.
a)zero
b)medium
c)low
d)high
e)infinite - Answers -✔✔ High
Fragile Systems
If you push twice as hard on an object and it moves twice as far, the work you do is
______ as much.
a)½
b)four times
c)exactly
d)twice
e)¼ - Answers -✔✔ four times
Fragile Systems
,Why have fatalities from natural disasters been increasing over the last century?
a)population is increasing
b)the numbers have not changed, we're now more aware about disasters
c)natural disaster events have been getting less frequent but more destructive
d)natural disaster events (such as earthquakes, etc.) have been getting more frequent
e)natural disaster events have been getting more destructive - Answers -✔✔ population
is increasing
Fragile Systems
In developed countries such as Canada where population levels are increasing, we can
expect economic losses due to natural disasters to ______.
a)remain steady at about $80 billion per year
b)increase significantly
c)remain near zero
d)decrease exponentially
e)remain nearly constant - Answers -✔✔ increase significantly
Fragile Systems
When you raise an object twice as high, the potential energy increases by a factor of
______.
a)a half
b)two
c)four
d)one
e)an order of magnitude - Answers -✔✔ two
Fragile Systems
Which of the following best describes the changes energy might go through to become
an earthquake?(Note: ↠ means "transformed to")
a)heat from the Earth ↠ kinetic energy in the mantle ↠ potential energy in the rock ↠
kinetic energy of the earthquake
b)kinetic energy from the Earth ↠ heat energy in the mantle ↠ potential energy in the
rock ↠ kinetic energy of the earthquake
c)potential energy from the Earth ↠ potential energy in the mantle ↠ potential energy in
the rock ↠ kinetic energy of the earthquake
d)kinetic energy in the mantle ↠ heat from the Earth ↠ potential energy in the rock ↠
kinetic energy of the earthquake
e)heat from the Earth ↠ potential energy in the mantle ↠ kinetic energy in the rock ↠
kinetic energy of the earthquake - Answers -✔✔ heat from the Earth ↠ kinetic energy in
the mantle ↠ potential energy in the rock ↠ kinetic energy of the earthquake
Fragile Systems
, A force per unit area applied perpendicular to an object's surface is called ______.
a)stress
b)strain
c)work
d)power
e)pressure - Answers -✔✔ pressure
Fragile Systems
Which statement is CORRECT? In the ______, the first and second most abundant (by
mass) elements are ______.
a)Earth's core... iron and nickel
b)ocean... hydrogen and chlorine
c)atmosphere... oxygen and argon
d)Earth's crust... silicon and hydrogen
e)Earth's crust... oxygen and aluminum - Answers -✔✔ Earth's core... iron and nickel
Fragile Systems
Why are many disaster intensities quantified using a logarithmic scale?
a)Many disasters are cyclic.
b)Earthquakes are more powerful than tornadoes.
c)Scientists like to confuse the public by using complicated disaster scales.
d)More intense disasters happen less frequently than weaker disasters.
e)Disaster intensities vary by many orders of magnitude. - Answers -✔✔ Disaster
intensities vary by many orders of magnitude.
Fragile Systems
An object that breaks when stresses are applied is called ______.
a)elastic
b)brittle
c)malleable
d)plastic
e)ductile - Answers -✔✔ brittle
Fragile Systems
A valid way to represent the mass of 10,000 kg is ______.
a)10 kg
b).0 × 104 g
c)0.010 × 109 Mg
d)10 × 106 mg
e)1 × 10 to the power of 7 (g) - Answers -✔✔ 1 × 10 to the power of 7 (g)
Fragile Systems
