Unit 7: Energy

The energy we use to function in our everyday lives can be classified as...

• Renewable or non-renewable

• Natural or non-renewable

• Renewable and Natural

• All of them

All of the following are considered renewable energy sources EXCEPT –

• Wind

• Coal

• Biomass

• Solar

Renewable energy resources produce less_____________ than fossil fuels.

• pollution

• energy

• wind

• light

Which type of energy produces Carbon Dioxide, which can be harmful to our planet and cause pollution?

• Solar Energy

• Wind Energy

• Fossil Fuels (Coal, oil, and gas)

• Nuclear Energy

According to the second law of thermodynamics, whenever one form of energy is transformed into another,

• all of the energy is put to work
• all of the energy is converted into a less usable form, like heat
• some of the energy is converted to a less usable form, like heat
• 50% of the energy is put to work, the rest is lost as heat

What is the most convenient form of energy that humans use? When we burn fossil fuels, build wind farms, use geothermal pumps, or install PV cells, our main goal is to convert these forms of energy into

• Electricity
• Carbon dioxide
• Neutrons
• Solar power

Which energy uses water held behind a dam?

• Geothermal
• Hydroelectric
• Nuclear
• Solar

_____________ power is electricity produced by flowing water.

• Solar 
• Wind 
• Hydroelectric 
• water

What is a possible downside to hydroelectric energy?

• generates high levels of pollution 
• high startup cost
• low functional lifespan
• high operation and maintenance cost 

Which of the following is NOT a negative to using hydroelectric power

• siltation occurs behind the dam

• fish are not able to migrate upstream

• creates air pollution

• reservoirs impact the surrounding environment