Name: __________________
Class:
Date: _____________
Lesson Assessment: Forms of Energy and the Conservation of Energy
1. An example of energy transformations can be found in the food chain: the Sun shines on a carrot plant,
which grows. A person eats the carrot, digesting the plant in a series of chemical reactions. The person uses
the energy to climb a set of stairs. What types of energy are described in this example?
a) electrical, nuclear, mechanical
b) thermal, electrical, solar
c) solar, chemical, mechanical
d) nuclear, thermal, chemical
2. Which energy source uses nonrenewable resources?
a) solar
b) geothermal
c) nuclear
d) coal
3. What is nuclear fusion and where does it take place?
a) It is the decomposition of atomic nuclei that takes place in Earth's core.
b) It is the joining of atomic nuclei that takes place in Earth's core
c) It is the decomposition of atomic nuclei that takes place in the Sun.
d) It is the joining of atomic nuclei that takes place in the Sun.
4. Many human made machines use the same processes to obtain energy that are used in nature. Automobiles
rely on the energy from combustion for operation. What process in nature also relies on combustion?
a) eruption of volcanoes
b) evaporation of water
c) respiration in animals
d) photosynthesis in plants
5. Why is hydrogen attractive as a replacement for petroleum?
a) It produces only water as a byproduct.
b) It will not cause damage if it leaks.
c) It is easy to handle using gasoline pumps.
d) It can be harvested from solar cells.
PAGE 1
Name: __________________
Class:
Date: _____________
Lesson Assessment: Forms of Energy and the Conservation of Energy
6. One significant limitation to the use of wind to generate energy is that _____.
a) only a small percentage of solar energy is transformed into wind
b) only remote areas can produce enough wind power to be useful
c) wind power is nonrenewable
d) wind blows intermittently
7. The energy possessed by a falling potato is an example of which type of energy?
a) kinetic energy
b) heat energy
c) nuclear energy
d) potential energy
8. The second law of thermodynamics states that _____.
a) the amount of entropy in a perfect crystal is zero when the temperature is absolute zero
b) energy can be transformed into matter and vice versa
c) the amount of unusable energy in the universe is constantly increasing
d) energy can be neither created nor destroyed
9. Nicholas Carnot theorized that steam engines could be improved based on his ideas about motive power and
heat. What concept did his work help develop?
a) relativity
b) 100% efficiency
c) conservation of energy
d) absolute zero
10. Biomass is considered a viable potential source of alternative energy. Where does the energy stored in
biomass come from?
a) motion of Earth
b) solar radiation
c) gravity
d) uneven distribution of heat
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ANSWER KEY
1.. c
2.. d
3.. d
4.. c
5.. a
6.. d
ANSWER KEY Page 1
7.. a
8.. c
9.. c
10.. b