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