Quiz about Energy Resources and Consumption

Question 1

Process that produces long lived radioactive isotopes:

Accepted Answer

Nuclear Fission

Answer

Solar

Answer

Wind

Answer

Hydroelectric

Question 2

Electricity produced from the movement of water:

Accepted Answer

Hydroelectric

Answer

Nuclear Fission

Answer

Solar

Answer

Wind

Question 3

Energy source that can be converted directly to electricity using PV cells:

Accepted Answer

Solar

Answer

Nuclear Fission

Answer

Wind

Answer

Hydroelectric

Question 4

The energy source that is non-renewable:

Accepted Answer

Nuclear Fission

Answer

Solar

Answer

Wind

Answer

Hydroelectric

Question 5

The energy source that can be used both passively and actively for space heating:

Accepted Answer

Solar

Answer

Nuclear Fission

Answer

Wind

Answer

Hydroelectric

Question 6

Which fuel has the great energy density?

Accepted Answer

Anthracite coal

Answer

Gasoline

Answer

Dry wood

Answer

Natural gas

Question 7

Which fuel requires the least mass to produce 100 MJ of heat energy?

Accepted Answer

Natural gas

Answer

Anthracite coal

Answer

Gasoline

Answer

Dry wood

Question 8

Which fuel is renewable?

Accepted Answer

Dry wood

Answer

Anthracite coal

Answer

Gasoline

Answer

Natural gas

Question 9

CAFE standards are regulations to:

Accepted Answer

Increase fuel economy in the country's vehicle fleet

Answer

Reduce traffic congestion

Answer

Decrease the price of fuel for vehicles

Answer

Maintain fuel economy over time

Question 10

A radioactive material has a half-life of 35 years. How many years will pass before the radioactivity drops to 25% of the original radioactivity?

Accepted Answer

70 years

Answer

35 years

Answer

105 years

Answer

140 years

Question 11

Which of the metals below is considered an energy source?

Accepted Answer

Uranium

Answer

Copper

Answer

Iron

Answer

Cobalt

Question 12

Which of the following correctly describes a fossil fuel:

Accepted Answer

Is non-renewable because it takes tens of millions of years to form

Answer

Is a fuel made from dinosaur bones

Answer

Is renewable because it is naturally occurring

Answer

Burns to release oxygen

Question 13

Identify the coal type with the highest carbon content.

Accepted Answer

Anthracite

Answer

Bituminous coal

Answer

Lignite

Answer

Peat

Question 14

A light bulb that is 90% efficient will use 1 joule of energy to produce how much light energy?

Accepted Answer

0.9 joules of light energy

Answer

1.1 joules of light energy

Answer

0.9 joules of heat energy

Answer

0.1 joules of light energy

Question 15

Solar power plants that focus light on to a tower containing water to produce steam need which of the following?

Accepted Answer

flat solar tracking mirrors that direct sunlight towards the top of the tower

Answer

Flat non-tracking mirrors aimed at the top of the tower

Answer

A flat solar tracking grid of photoelectric cells

Answer

A passive system where building design alone absorbs enough solar energy to heat the water.

Question 16

Hydroelectric power plants use pumped storage to do which one of the following?

Accepted Answer

Store energy by pumping excess water to a high level reservoir during times of low demand

Answer

Produce excess energy by using extra pumps to move more water past the turbines

Answer

Store energy by pumping water from the river downstream back into the reservoir

Answer

Produce more energy by pumping water to other power plants

Question 17

The overall efficiency of the process is:

Accepted Answer

41%

Answer

25%

Answer

76%

Answer

225%

Question 18

If the plant uses 20 MJ of energy what will the electrical energy output be?

Accepted Answer

8.2MJ

Answer

5MJ

Answer

45MJ

Answer

15.2 MJ

Question 19

Which of the following statements describes the process of turning geothermal energy into electricity?

Accepted Answer

Steam from the ground is directed through insulated pipes to turbines, which turn the generators. Waste water and steam is injected back into the steam field.

Answer

Hot water deep in the ground is used to turn turbines and produce electricity. Hot water is the returned to the ground

Answer

Heat from deep in the ground is used to heat boilers which produce the steam to turn a turbine and produce electricity. Waste steam is returned to the boiler.

Answer

Water is circulated through pipes buried in the ground. The water is turned to steam by geothermal heat. The steam is used to turn a turbine to make electricity.

Question 20

Which of the following fuel types is the most energy efficient when used to power cars?

Accepted Answer

Electric batteries charged from mains supply

Answer

Hydrogen fuel cells

Answer

Gasoline

Answer

Diesel

Question 21

Which of the following would affect the amount of solar energy available for use in a solar power plant?

Accepted Answer

All of the above

Answer

The latitude

Answer

The time of day

Answer

The season

Question 22

Which of the following statements about passive solar heating is true?

Accepted Answer

Uses building design elements to capture and retain heat from the sun to warm a building

Answer

Uses pumps to capture and circulate solar energy about the building, but uses no internal heating components.

Answer

Is the slow steady heating of the Earth's surface by the Sun

Answer

Is only viable in extremely sunny areas such as deserts

Question 23

A light bulb rated at 13W is left on for 4 hours. Given that it is 90% efficient at producing light, the light energy produced will be which of the following?

Accepted Answer

168,480 J

Answer

1870 J

Answer

4680 J

Answer

187,200 J

Question 24

Which of the following statements about the production of electricity using water (hydroelectricity) is true?

Accepted Answer

It is very efficient because there are few steps in the process so most of the energy in the water is converted to electricity

Answer

Is very inefficient because most of the energy is lost as friction of the water against the penstock walls.

Answer

Is very efficient because water is renewable

Answer

Is very inefficient because it is dependent of the available water

Question 25

Which of the following releases the least amount of carbon dioxide per unit of energy?

Accepted Answer

Natural Gas

Answer

Coal

Answer

Oil

Answer

All of these produce the same amount of carbon dioxide

Question 26

Antarctic research stations have started using solar photovoltaic cells to provide power. The best angle of these relative to the horizon would be:

Accepted Answer

90 degrees

Answer

0 degrees

Answer

45 degrees

Answer

66 degrees

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