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Phys Sci Ch 15 B
Test Description: Energy
Instructions: Answer all questions to get your test result.
1) The equation E=mc2 relates energy and
A
mass
B
force
C
gravity
2) In which of the does Einstein's famous equation apply?
A
a driver brings a car to a halt
B
water falling in a waterfall
C
nuclear fission and fusion reactions
3) Which of the following statements is a consequence of the equation E=mc2?
A
mass and energy are equivalent
B
Energy is released when matter is destroyed
C
all of the above
4) What is biomass energy?
A
the chemical energy stored in living things
B
the nuclear energy stored in living things
C
the electromagnetic energy stored in living things
5) Nonrenewable energy resources do not include which of the following?
A
coal
B
hydrogen fuel cells
C
oil
6) Fossil fuels currently account for the majority of the world's energy use because they are
A
distributed evenly throughout the world
B
relatively inexpensive and readily available
C
nonpolluting
7) A drawback of solar energy is that it
A
produces water pollution
B
cannot be converted directly into electrical energy
C
depends on the climate
8) A benefit of a hydrogen fuel cell is that its byproduct is
A
oxygen
B
carbon dioxide
C
water
9) Which of the following types of transportation is NOT mass transportation?
A
car
B
streetcar
C
bus
10) Based on your knowledge of energy conservation, which of the following statements is true?
A
both
B
Energy can be conserved by turning off lights when they are not in use
C
manufacturers can increase a light bulb's efficiency by using technology that increases the amnt of electromag en. of bulb
11) Energy of an object increases when _____ is done on the object
A
speed
B
work
C
energy
12) If the ______ of an object doubles, its kinetic energy doubles
A
mass
B
height
C
speed
13) Energy that is stored due to position or shape is called ______ energy.
A
potential
B
thermal
C
kinetic
14) You can calculate an object's gravitational potential energy by using the equation ______.
A
1/2mv2
B
mgh
15) The sum of the kinetic energy and potential energy of an object is called its ____ energy.
A
mechanical
B
thermal
C
potential
16) The process of changing energy from one form to another is called energy _______
A
conversion
B
creation
C
conservation
17) energy cannot be created or destroyed - is a statement of the law of _______.
A
conservation of mass
B
1st law of thermodynamics
C
conservation of energy
18) Turning off unused lights or appliances is an example of energy _______.
A
creation
B
conversion
C
conservation
19) Which of the following is NOT a nonrenewable resources
A
Oil
B
Natural gas
C
Solar
20) Which of the following is NOT a renewable energy resources
A
Coal
B
Geothermal
C
Hydroelectric
*select an answer for all questions
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