Electricity and Power Quiz

What is the unit of power that represents one joule per second?

• Kilowatt

• Megawatt

• Watt

• Gigawatt

How many watts are equivalent to one kilowatt?

• 100 watts

• 1,000 watts

• 10,000 watts

• 100,000 watts

What does a kilowatt-hour (kWh) measure?

• The power used by a device in one hour

• The energy used by consuming 1000 watts for one hour

• The energy generated by one kilowatt in one minute

• The cost of electricity per kilowatt

How many kilowatts are in a megawatt-hour (MWh)?

• 100 kilowatts

• 1,000 kilowatts

• 10,000 kilowatts

• 100,000 kilowatts

What was the largest source of electricity generation in the U.S. in 2014 according to the diagram?

• Natural Gas

• Nuclear

• Coal

• Renewable

What percentage of the U.S. electricity generation mix was contributed by renewable sources in 2014?

• 13%

• 27%

• 39%

• 1%

Which renewable source contributed the most to the U.S. electricity generation mix in 2014?

• Wind

• Hydro

• Biomass wood

• Solar

According to the 2014 data, what percentage of U.S. electricity was generated using nuclear energy?

• 19%

• 13%

• 27%

• 1%

What was the largest source of electricity generation in the U.S. in 2020?

• Natural Gas

• Nuclear

• Coal

• Renewables

What percentage of U.S. electricity generation in 2020 was contributed by renewable sources?

• 15%

• 20%

• 25%

• 30%