Crash Course World History: Energy

What was the primary source of energy for humans for over 99% of history?

• Nuclear energy

• Muscle power

• Electricity

• Wind power

Which early energy technology allowed humans to cook and improve tools?

• Solar panels

• Water power

• Fire

• Windmills

What was the first machine to provide significant power not derived from muscle, water, or wind?

• Newcomen's Steam Engine

• Nuclear reactor

• Electric generator

• Internal combustion engine

Which fuel was revolutionary for powering electricity plants, ships, and the internal combustion engine?

• Coal

• Natural gas

• Wood

• Oil

What is a significant environmental impact of the widespread use of automobiles?

• Increased carbon emissions

• Decreased energy consumption

• Reduced air pollution

• Increased forestation

What has been humanity's primary energy use increase since 1850?

• Five times

• Ten times

• Twenty times

• Thirty times

What is a major reason nuclear power has not been widely adopted?

• It is too efficient

• It produces no waste

• It is considered dangerous

• It is too cheap

What is the main challenge with nuclear energy that prevents its widespread use?

• Lack of raw materials

• Excessive efficiency

• High cost and waste management

• Too much public support

What percentage of the world's energy supply has nuclear power never exceeded?

• 10%

• 20%

• 15%

• 5%

What is a major concern about the future of energy consumption?

• Unlimited fossil fuel supply

• Sustainability with current technology

• Decreasing energy needs

• Abundance of renewable energy