Question 1

Which of the following is a product of photosynthesis?

Accepted Answer

A) CO₂ 
B) H₂O 
C) H₂S 
D) O₂ 
A) CO₂ 
B) H₂O 
C) H₂S 
D) O₂ D

Question 2

Which of the following is NOT an advantage of using hydrogen as a fuel for cars?

Accepted Answer

A) Water vapor is the only exhaust, so air pollution is not produced. 
B) Liquid hydrogen must be stored at very low temperatures. 
C) Hydrogen could reduce our reliance on foreign oil. 
D) Hydrogen can be made from renewable resources. 
A) Water vapor is the only exhaust, so air pollution is not produced. 
B) Liquid hydrogen must be stored at very low temperatures. 
C) Hydrogen could reduce our reliance on foreign oil. 
D) Hydrogen can be made from renewable resources. B

Question 3

Fuel cells are more efficient in converting chemical energy to electricity than internal combustion engines are.

Accepted Answer

A) True 
 B)False  True

Question 4

The number of hydrocarbons that make up the mixture called gasoline is

Accepted Answer

A) less than 100. 
B) less than 1000. 
C) more than 2000. 
D) more than 1,000,000. 
A) less than 100. 
B) less than 1000. 
C) more than 2000. 
D) more than 1,000,000.

Question 5

Hydraulic fracturing (fracking)is widely used to produce

Accepted Answer

A) coal. 
B) natural gas. 
C) pure water. 
D) petroleum. 
A) coal. 
B) natural gas. 
C) pure water. 
D) petroleum.

Question 6

When two compounds react,the amount of energy released is independent of the amounts of the compounds.

Accepted Answer

A) True 
 B)False

Question 7

Approximately what percentage of electricity generated in the United States is hydroelectric?

Accepted Answer

A) < 1% 
B) 7% 
C) 23% 
D) 44% 
A) < 1% 
B) 7% 
C) 23% 
D) 44%

Question 8

Petroleum is best described as a

Accepted Answer

A) pure substance. 
B) compound. 
C) simple mixture. 
D) complex mixture. 
A) pure substance. 
B) compound. 
C) simple mixture. 
D) complex mixture.

Question 9

A disadvantage of strip mining is that it leaves the soil exposed and erosion occurs more readily.

Accepted Answer

A) True 
 B)False

Question 10

The use of biomass as a solution to all energy needs is limited by

Accepted Answer

A) a lack of appropriate plants. 
B) a lack of technology to process and burn biomass. 
C) the nonrenewability of biomass. 
D) a shortage of land to grow plants for energy consumption. 
A) a lack of appropriate plants. 
B) a lack of technology to process and burn biomass. 
C) the nonrenewability of biomass. 
D) a shortage of land to grow plants for energy consumption.

Question 11

When coal is heated in the absence of air,the condensed vapor collected during the heating is called

Accepted Answer

A) coal. 
B) coke. 
C) coal tar. 
D) carbon. 
A) coal. 
B) coke. 
C) coal tar. 
D) carbon.

Question 12

Electricity produced from nuclear power is especially important in which part of the United States?

Accepted Answer

A) Southwest 
B) eastern seaboard and the Upper Midwest 
C) West 
D) Plains 
A) Southwest 
B) eastern seaboard and the Upper Midwest 
C) West 
D) Plains

Question 13

The principal fuel(s)for nuclear fusion would be

Accepted Answer

A) uranium-235 and uranium-238. 
B) deuterium and tritium (²H and ³H). 
C) plutonium-238. 
D) water. 
A) uranium-235 and uranium-238. 
B) deuterium and tritium (²H and ³H). 
C) plutonium-238. 
D) water.

Question 14

Which of the following is NOT powered by the sun?

Accepted Answer

A) the water cycle 
B) the winds 
C) geothermal energy 
D) biomass production 
A) the water cycle 
B) the winds 
C) geothermal energy 
D) biomass production

Question 15

Which of the following statements about plutonium and breeder reactors is correct?

Accepted Answer

A) Plutonium has a high melting point, so the core would not melt if the cooling system failed. 
B) Plutonium is relatively easy to separate from uranium because they are chemically different. 
C) Plutonium is a beta emitter. 
D) Fissionable uranium-235 is used to produce fissionable plutonium-239. 
A) Plutonium has a high melting point, so the core would not melt if the cooling system failed. 
B) Plutonium is relatively easy to separate from uranium because they are chemically different. 
C) Plutonium is a beta emitter. 
D) Fissionable uranium-235 is used to produce fissionable plutonium-239.

Question 16

For most uses,the most convenient form of energy is

Accepted Answer

A) chemical. 
B) electrical. 
C) mechanical. 
D) solar. 
A) chemical. 
B) electrical. 
C) mechanical. 
D) solar.

Question 17

The United States uses energy more efficiently than other countries do.

Accepted Answer

A) True 
 B)False

Question 18

Hydrogen gas has been proposed as a fuel of the future because

Accepted Answer

A) it can be obtained cheaply by drilling. 
B) it can be extracted from seawater with no energy expenditure. 
C) it is nonflammable. 
D) it burns to produce water. 
A) it can be obtained cheaply by drilling. 
B) it can be extracted from seawater with no energy expenditure. 
C) it is nonflammable. 
D) it burns to produce water.

Question 19

Coal tar and coke are sources of organic chemicals for medical and industrial use.

Accepted Answer

A) True 
 B)False

Question 20

The highest grade of coal is

Accepted Answer

A) anthracite. 
B) bituminous. 
C) lignite. 
D) peat. 
A) anthracite. 
B) bituminous. 
C) lignite. 
D) peat.

Exam 15: Energy

Which of the following is a product of photosynthesis?

Which of the following is NOT an advantage of using hydrogen as a fuel for cars?

Fuel cells are more efficient in converting chemical energy to electricity than internal combustion engines are.

The number of hydrocarbons that make up the mixture called gasoline is

Hydraulic fracturing (fracking)is widely used to produce

When two compounds react,the amount of energy released is independent of the amounts of the compounds.

Approximately what percentage of electricity generated in the United States is hydroelectric?

Petroleum is best described as a

A disadvantage of strip mining is that it leaves the soil exposed and erosion occurs more readily.

The use of biomass as a solution to all energy needs is limited by

When coal is heated in the absence of air,the condensed vapor collected during the heating is called

Electricity produced from nuclear power is especially important in which part of the United States?

The principal fuel(s)for nuclear fusion would be

Which of the following is NOT powered by the sun?

Which of the following statements about plutonium and breeder reactors is correct?

For most uses,the most convenient form of energy is

The United States uses energy more efficiently than other countries do.

Hydrogen gas has been proposed as a fuel of the future because

Coal tar and coke are sources of organic chemicals for medical and industrial use.

The highest grade of coal is

Chemistry

Atoms

Atomic Structure

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Acids and Bases

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters