Question 1

Hydroelectric power currently generates approximately _____ of the electricity in the United States.

Accepted Answer

A)  5% 
B)  42% 
C)  16% 
D)  70% 
E)  7% 
A)  5% 
B)  42% 
C)  16% 
D)  70% 
E)  7%

Question 2

Which of the following systems utilize(s) solar thermal energy?
I. Solar power tower
II. Parabolic trough
III. Dish/engine

Accepted Answer

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

Question 3

Which of the following methods is not currently explored for storing solar energy?

Accepted Answer

A)  Light capture 
B)  Heat storage 
C)  Battery storage 
D)  Creation of chemical bonds 
E)  All of these 
A)  Light capture 
B)  Heat storage 
C)  Battery storage 
D)  Creation of chemical bonds 
E)  All of these

Question 4

Which of the following statements associated with wind power is incorrect ?

Accepted Answer

A)  Wind power is an indirect form of solar power. 
B)  Wind power accounts for 5% of the total electricity of the United States. 
C)  Wind power is currently too expensive. 
D)  Wind power production is uncontrollable and intermittent. 
E)  All of these statements are correct. 
A)  Wind power is an indirect form of solar power. 
B)  Wind power accounts for 5% of the total electricity of the United States. 
C)  Wind power is currently too expensive. 
D)  Wind power production is uncontrollable and intermittent. 
E)  All of these statements are correct.

Question 5

Photovoltaic systems convert solar energy into _____.

Accepted Answer

A)  heat 
B)  electricity 
C)  electrons 
D)  solar thermal power 
E)  steam 
A)  heat 
B)  electricity 
C)  electrons 
D)  solar thermal power 
E)  steam

Question 6

Which of the following use(s) large troughs to track and focus sunlight onto a pipe and the sunlight heats a synthetic oil, leading to the heating of water for creating steam?
I. Solar power tower
II. Parabolic trough
III. Dish/engine

Accepted Answer

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

Question 7

_____, which became operational in 2014, is a 370-MW solar power tower project in the United States.

Accepted Answer

A)  PS30 
B)  PS20 
C)  Ivanpah 
D)  PTFE 
E)  PS10 
A)  PS30 
B)  PS20 
C)  Ivanpah 
D)  PTFE 
E)  PS10

Question 8

Which of the following is the world's most utilized alternative energy source?

Accepted Answer

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

Question 9

How many square meters of photovoltaic cells would be required to light a 60-W computer monitor? The efficiency of photovoltaic cells is 15% for converting 1000 W/m  2  of solar energy to electricity.

Accepted Answer

A)  0.40 m2 
B)  2.5 m2 
C)  14 m2 
D)  9 m2 
E)  400 m2 
A)  0.40 m2 
B)  2.5 m2 
C)  14 m2 
D)  9 m2 
E)  400 m2

Question 10

Which of the following problems is/are associated with storing solar energy in batteries?
I. It is very expensive.
II. There is a lack of storage materials.
III. There is a loss of energy during the conversion process.

Accepted Answer

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

Hydroelectric power currently generates approximately _____ of the electricity in the United States.

Which of the following systems utilize(s) solar thermal energy? I. Solar power tower II. Parabolic trough III. Dish/engine

Which of the following methods is not currently explored for storing solar energy?

Which of the following statements associated with wind power is incorrect ?

Photovoltaic systems convert solar energy into _____.

Which of the following use(s) large troughs to track and focus sunlight onto a pipe and the sunlight heats a synthetic oil, leading to the heating of water for creating steam? I. Solar power tower II. Parabolic trough III. Dish/engine

_____, which became operational in 2014, is a 370-MW solar power tower project in the United States.

Which of the following is the world's most utilized alternative energy source?

How many square meters of photovoltaic cells would be required to light a 60-W computer monitor? The efficiency of photovoltaic cells is 15% for converting 1000 W/m ² of solar energy to electricity.

Which of the following problems is/are associated with storing solar energy in batteries? I. It is very expensive. II. There is a lack of storage materials. III. There is a loss of energy during the conversion process.

Molecular Reasons

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Molecules, Compounds, and Chemical Reactions

Chemical Bonding

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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

Hydroelectric power currently generates approximately _____ of the electricity in the United States.

Which of the following systems utilize(s) solar thermal energy? I. Solar power tower II. Parabolic trough III. Dish/engine

Which of the following methods is not currently explored for storing solar energy?

Which of the following statements associated with wind power is incorrect ?

Photovoltaic systems convert solar energy into _____.

Which of the following use(s) large troughs to track and focus sunlight onto a pipe and the sunlight heats a synthetic oil, leading to the heating of water for creating steam? I. Solar power tower II. Parabolic trough III. Dish/engine

_____, which became operational in 2014, is a 370-MW solar power tower project in the United States.

Which of the following is the world's most utilized alternative energy source?

How many square meters of photovoltaic cells would be required to light a 60-W computer monitor? The efficiency of photovoltaic cells is 15% for converting 1000 W/m 2 of solar energy to electricity.

Which of the following problems is/are associated with storing solar energy in batteries? I. It is very expensive. II. There is a lack of storage materials. III. There is a loss of energy during the conversion process.

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

How many square meters of photovoltaic cells would be required to light a 60-W computer monitor? The efficiency of photovoltaic cells is 15% for converting 1000 W/m ² of solar energy to electricity.