lesson three

Anonymous
timer Asked: Oct 15th, 2018
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Question Description

when you have a question done just send it on here not as an attachment please


Question 1 (5 points)

Question 1 Unsaved

Which statement is false as regards hydroelectric power?

Question 1 options:

a)

Hydroelectric power reduces overall greenhouse emissions.

b)

Initial costs of construction are high, but operating costs are low.

c)

Hydroelectric plants may obstruct fish and wildlife migration.

d)

Mechanical energy is the main product of hydroelectric plants.

Question 2 (5 points)

Question 2 Unsaved

In which part of the United States are geothermal power plants found?

Question 2 options:

a)

Southwest

b)

Northeast

c)

Upper Midwest

d)

East Coast

Question 3 (5 points)

Question 3 Unsaved

According to the third law of thermodynamics, energy ceases to exist at a temperature called absolute zero. This is considered a(n) _______ limit.

Question 3 options:

a)

provisional

b)

experimental

c)

theoretical

d)

estimated

Question 4 (5 points)

Question 4 Unsaved

_______ energy is a fundamental need for life on Earth.

Question 4 options:

a)

Electrical

b)

Solar

c)

Chemical

d)

Potential

Question 5 (5 points)

Question 5 Unsaved

The amount of energy required to raise one pound of water by 1 degree Fahrenheit equals one

Question 5 options:

a)

BTU.

b)

therm.

c)

quad.

d)

joule.

Question 6 (5 points)

Question 6 Unsaved

_______ is a "rare earth" mineral crucial to the construction of solar panels.

Question 6 options:

a)

Platinum

b)

Tellurium

c)

Coltan

d)

Lithium

Question 7 (5 points)

Question 7 Unsaved

Globally, more than half of consumed energy is in the _______ sector.

Question 7 options:

a)

transportation

b)

industrial

c)

commercial

d)

residential

Question 8 (5 points)

Question 8 Unsaved

_______ is a byproduct of coal and vital to steel production.

Question 8 options:

a)

Nitric acid

b)

Activated charcoal

c)

Coke

d)

Carbon fiber

Question 9 (5 points)

Question 9 Unsaved

Which sector has consistently used the greatest percentage of energy in the United States?

Question 9 options:

a)

Industrial

b)

Commercial

c)

Residential

d)

Transportation

Question 10 (5 points)

Question 10 Unsaved

A watt is the equivalent of one _______ per second.

Question 10 options:

a)

unit of work

b)

unit of energy

c)

joule

d)

kilocalorie

Question 11 (5 points)

Question 11 Unsaved

The United States produced 16 quadrillion BTUs of which type of energy in 2017?

Question 11 options:

a)

Nuclear energy

b)

Natural gas

c)

Hydropower

d)

Coal

Question 12 (5 points)

Question 12 Unsaved

Peat is the least carbon-rich substance burned for fuel. The coal with the richest carbon content is _______ coal.

Question 12 options:

a)

lignite

b)

sub-bituminous

c)

bituminous

d)

anthracite

Question 13 (5 points)

Question 13 Unsaved

Chemical energy is stored in the bonds of

Question 13 options:

a)

elements.

b)

particles.

c)

molecules.

d)

compounds.

Question 14 (5 points)

Question 14 Unsaved

Two students are discussing the disadvantages of biomass. Student 1 claims that when biomass is burned, too many toxins are released, worsening air pollution. Student 2 claims that planting biofuel crops uses too much farmland that could be used for food. According to this course, who is correct?

Question 14 options:

a)

Both Students 1 and 2 are correct.

b)

Both Student 1 and 2 are incorrect.

c)

Only Student 2 is correct.

d)

Only Student 1 is correct.

Question 15 (5 points)

Question 15 Unsaved

Which carbon-rich compound is found in the Earth in liquid form?

Question 15 options:

a)

Propane

b)

Crude oil

c)

Butane

d)

Ethane

Question 16 (5 points)

Question 16 Unsaved

Which statement regarding nuclear fission is true?

Question 16 options:

a)

The cost of building a nuclear power plant is high.

b)

Core meltdowns generally don't impact the surrounding population.

c)

Nuclear power plants release as much pollution as coal and oil during normal operation.

d)

Nuclear plants produce less than one ton of toxic nuclear waste annually, on average.

Question 17 (5 points)

Question 17 Unsaved

The three stages in the combustion of gas in an internal combustion engine are combustion, thermal energy, and _______ energy.

Question 17 options:

a)

kinetic

b)

potential

c)

provisional

d)

mechanical

Question 18 (5 points)

Question 18 Unsaved

Which statement best describes the major disadvantage of geothermal energy?

Question 18 options:

a)

The heat in Earth's mantle is neither consistent nor reliable.

b)

This type of energy can only be harnessed in specific locations.

c)

Earthquakes occur wherever geothermal energy is mined.

d)

Energy outputs from this type of plant are hard to predict.

Question 19 (5 points)

Question 19 Unsaved

Energy efficiency is reduced as we _______ the number of steps needed to get energy from its source to useful work.

Question 19 options:

a)

reduce

b)

equalize

c)

increase

d)

decrease

Question 20 (5 points)

Question 20 Unsaved

Wind power capacity in the United States has increased annually by _______ percent.

Question 20 options:

a)

15

b)

30

c)

45

d)

50

Tutor Answer

DrBean
School: UCLA

1...

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Anonymous
Goes above and beyond expectations !

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