Question 1

Apart from low concentrations, which of the following is the most significant problem associated with solar energy?

Accepted Answer

A)  Low levels of processing 
B)  Intermittence of sunlight 
C)  Inefficient storage 
D)  High cost of collecting 
E)  Lack of sufficient collecting systems 
A)  Low levels of processing 
B)  Intermittence of sunlight 
C)  Inefficient storage 
D)  High cost of collecting 
E)  Lack of sufficient collecting systems

Question 2

Rank these household energy consumers in ascending order.
(Space heating, Air-conditioning, Water heating, Appliances)

Accepted Answer

A)  Space heating < Air-conditioning < Water heating < Appliances 
B)  Appliances < Air-conditioning < Space heating < Water heating 
C)  Air-conditioning < Appliances < Space heating < Water heating 
D)  Air-conditioning < Water heating < Appliances < Space heating 
E)  Air conditioning < Appliances < Water heating < Space heating 
A)  Space heating < Air-conditioning < Water heating < Appliances 
B)  Appliances < Air-conditioning < Space heating < Water heating 
C)  Air-conditioning < Appliances < Space heating < Water heating 
D)  Air-conditioning < Water heating < Appliances < Space heating 
E)  Air conditioning < Appliances < Water heating < Space heating

Question 3

Which of the following will increase the supply of nuclear fissionable material to 8000 years?

Accepted Answer

A)  PV cells 
B)  Fuel cells 
C)  Solar power towers 
D)  Dish/engines 
E)  Breeder reactors 
A)  PV cells 
B)  Fuel cells 
C)  Solar power towers 
D)  Dish/engines 
E)  Breeder reactors

Question 4

Which of the following is the correct notation for an electron-rich semiconductor when silicon is doped with arsenic?

Accepted Answer

A)  p-type 
B)  p/n-type 
C)  n-type 
D)  n/p-type 
E)  None of these 
A)  p-type 
B)  p/n-type 
C)  n-type 
D)  n/p-type 
E)  None of these

Question 5

Which of the following parts of a dish/engine becomes the heat source for a turbine?

Accepted Answer

A)  The collector 
B)  The receiver 
C)  The engine 
D)  The heliostat 
E)  The condenser 
A)  The collector 
B)  The receiver 
C)  The engine 
D)  The heliostat 
E)  The condenser

Question 6

Which of the following heating sources is the most effective in heating homes?

Accepted Answer

A)  Solar energy 
B)  Electricity 
C)  Hydropower 
D)  Geothermal energy 
E)  Natural gas 
A)  Solar energy 
B)  Electricity 
C)  Hydropower 
D)  Geothermal energy 
E)  Natural gas

Question 7

What amount of energy is conserved when a house is heated directly with natural gas?

Accepted Answer

A)  10 - 20% 
B)  30 - 40% 
C)  50 - 60% 
D)  70 - 90% 
E)  95 - 98% 
A)  10 - 20% 
B)  30 - 40% 
C)  50 - 60% 
D)  70 - 90% 
E)  95 - 98%

Question 8

Which of the following forms of alternative power source does not get its energy from the Sun either directly or indirectly?

Accepted Answer

A)  Geothermal energy 
B)  Hydroelectric power 
C)  Wind power 
D)  Biomass energy 
E)  Solar energy 
A)  Geothermal energy 
B)  Hydroelectric power 
C)  Wind power 
D)  Biomass energy 
E)  Solar energy

Question 9

Which of the following is a cleaner alternative fuel source to fossil fuels?

Accepted Answer

A)  Solar energy 
B)  Wind power 
C)  Hydroelectric power 
D)  Geothermal energy 
E)  All of these 
A)  Solar energy 
B)  Wind power 
C)  Hydroelectric power 
D)  Geothermal energy 
E)  All of these

Question 10

Which of the following items will not lead to the conservation of household energy?

Accepted Answer

A)  Lowering thermostats 
B)  Using incandescent lighting 
C)  Heating directly with natural gas 
D)  Installing double-pane windows 
E)  Cooking in microwaves when possible 
A)  Lowering thermostats 
B)  Using incandescent lighting 
C)  Heating directly with natural gas 
D)  Installing double-pane windows 
E)  Cooking in microwaves when possible

Question 11

In which of these regions does hydroelectric power have the greatest potential for growth?

Accepted Answer

A)  Mountainous regions 
B)  Desert regions 
C)  Developing countries 
D)  Developed countries 
E)  Island nations 
A)  Mountainous regions 
B)  Desert regions 
C)  Developing countries 
D)  Developed countries 
E)  Island nations

Question 12

Which of the following is not a disadvantage of hydroelectric power?

Accepted Answer

A)  Threat to marine life 
B)  Threat of dam failure 
C)  Disruption of nutrient flow downstream 
D)  Relatively small number of dammable rivers 
E)  Cost of producing hydroelectric power 
A)  Threat to marine life 
B)  Threat of dam failure 
C)  Disruption of nutrient flow downstream 
D)  Relatively small number of dammable rivers 
E)  Cost of producing hydroelectric power

Question 13

Identify the disadvantage/disadvantages of using nuclear power as an alternative energy source.
I. Limited amounts of U-235
II. Radioactive wastes
III. Smog production

Accepted Answer

A)  II only 
B)  II and III 
C)  I and III 
D)  I and II 
E)  I, II, and III 
A)  II only 
B)  II and III 
C)  I and III 
D)  I and II 
E)  I, II, and III

Question 14

Which of the following methods is used to store solar energy by forming chemical bonds?

Accepted Answer

A)  Replication 
B)  Photosynthesis 
C)  Electrolysis 
D)  Combustion 
E)  Hydrolysis 
A)  Replication 
B)  Photosynthesis 
C)  Electrolysis 
D)  Combustion 
E)  Hydrolysis

Question 15

Which of the following factors provides a source of energy to excite electrons that move across a p-n junction?

Accepted Answer

A)  Light 
B)  Heat 
C)  Silicon 
D)  Steam 
E)  External current 
A)  Light 
B)  Heat 
C)  Silicon 
D)  Steam 
E)  External current

Question 16

Identify the problem/problems associated with photovoltaic cells.
I. The semiconductor in photovoltaic cells is doped with small amounts of other elements.
II. Photovoltaic cells are expensive to construct.
III. Photovoltaic cells must absorb large amounts of energy for useful applications.

Accepted Answer

A)  I only 
B)  III only 
C)  I and III 
D)  II and III 
E)  I, II, and III 
A)  I only 
B)  III only 
C)  I and III 
D)  II and III 
E)  I, II, and III

Question 17

Which of the following has the highest household energy consumption?

Accepted Answer

A)  Water heating 
B)  Air-conditioning 
C)  Space heating 
D)  Appliances 
E)  Television 
A)  Water heating 
B)  Air-conditioning 
C)  Space heating 
D)  Appliances 
E)  Television

Question 18

Which of the following is the most significant problem associated with biomass energy?

Accepted Answer

A)  Inefficient form of energy 
B)  Global warming 
C)  Insufficient land 
D)  Expensive to produce 
E)  Hazardous wastes 
A)  Inefficient form of energy 
B)  Global warming 
C)  Insufficient land 
D)  Expensive to produce 
E)  Hazardous wastes

Question 19

Which of the following is not a part of Solar Two?

Accepted Answer

A)  The turbine 
B)  The control rod 
C)  The central receiver 
D)  The condenser 
E)  The heliostat 
A)  The turbine 
B)  The control rod 
C)  The central receiver 
D)  The condenser 
E)  The heliostat

Question 20

Which of the following is the most significant problem associated with geothermal energy?

Accepted Answer

A)  Inefficient form of energy 
B)  Global warming 
C)  Limited availability 
D)  Expensive to produce 
E)  None of these 
A)  Inefficient form of energy 
B)  Global warming 
C)  Limited availability 
D)  Expensive to produce 
E)  None of these

Apart from low concentrations, which of the following is the most significant problem associated with solar energy?

Rank these household energy consumers in ascending order. (Space heating, Air-conditioning, Water heating, Appliances)

Which of the following will increase the supply of nuclear fissionable material to 8000 years?

Which of the following is the correct notation for an electron-rich semiconductor when silicon is doped with arsenic?

Which of the following parts of a dish/engine becomes the heat source for a turbine?

Which of the following heating sources is the most effective in heating homes?

What amount of energy is conserved when a house is heated directly with natural gas?

Which of the following forms of alternative power source does not get its energy from the Sun either directly or indirectly?

Which of the following is a cleaner alternative fuel source to fossil fuels?

Which of the following items will not lead to the conservation of household energy?

In which of these regions does hydroelectric power have the greatest potential for growth?

Which of the following is not a disadvantage of hydroelectric power?

Identify the disadvantage/disadvantages of using nuclear power as an alternative energy source. I. Limited amounts of U-235 II. Radioactive wastes III. Smog production

Which of the following methods is used to store solar energy by forming chemical bonds?

Which of the following factors provides a source of energy to excite electrons that move across a p-n junction?

Identify the problem/problems associated with photovoltaic cells. I. The semiconductor in photovoltaic cells is doped with small amounts of other elements. II. Photovoltaic cells are expensive to construct. III. Photovoltaic cells must absorb large amounts of energy for useful applications.

Which of the following has the highest household energy consumption?

Which of the following is the most significant problem associated with biomass energy?

Which of the following is not a part of Solar Two?

Which of the following is the most significant problem associated with geothermal energy?

Molecular Reasons

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Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

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Nuclear Chemistry

Energy for Today

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

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Exam 10: Energy for Tomorrow: Solar and Other Renewable Energy Sources

Apart from low concentrations, which of the following is the most significant problem associated with solar energy?

Rank these household energy consumers in ascending order. (Space heating, Air-conditioning, Water heating, Appliances)

Which of the following will increase the supply of nuclear fissionable material to 8000 years?

Which of the following is the correct notation for an electron-rich semiconductor when silicon is doped with arsenic?

Which of the following parts of a dish/engine becomes the heat source for a turbine?

Which of the following heating sources is the most effective in heating homes?

What amount of energy is conserved when a house is heated directly with natural gas?

Which of the following forms of alternative power source does not get its energy from the Sun either directly or indirectly?

Which of the following is a cleaner alternative fuel source to fossil fuels?

Which of the following items will not lead to the conservation of household energy?

In which of these regions does hydroelectric power have the greatest potential for growth?

Which of the following is not a disadvantage of hydroelectric power?

Identify the disadvantage/disadvantages of using nuclear power as an alternative energy source. I. Limited amounts of U-235 II. Radioactive wastes III. Smog production

Which of the following methods is used to store solar energy by forming chemical bonds?

Which of the following factors provides a source of energy to excite electrons that move across a p-n junction?

Identify the problem/problems associated with photovoltaic cells. I. The semiconductor in photovoltaic cells is doped with small amounts of other elements. II. Photovoltaic cells are expensive to construct. III. Photovoltaic cells must absorb large amounts of energy for useful applications.

Which of the following has the highest household energy consumption?

Which of the following is the most significant problem associated with biomass energy?

Which of the following is not a part of Solar Two?

Which of the following is the most significant problem associated with geothermal energy?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters