Energy and Its Forms Quiz

What is the primary external source of energy for Earth?

• Geothermal energy

• The Sun

• Radioactive isotopes

• Rotational energy

What type of energy transfer occurs when an LED desk lamp's 6 Watt bulb is on?

• 6 Joules of kinetic energy per second

• 6 Joules of sound energy per second

• 6 Joules of heat energy per second

• 6 Joules of light energy per second

Which of the following is NOT a physical system of Earth?

• Atmosphere

• Stratosphere

• Hydrosphere

• Lithosphere

What happens to energy during any transfer between Earth's systems?

• It is created

• It is completely conserved

• Some is lost to the surroundings

• It is destroyed

What process do plants, algae, and cyanobacteria use to produce organic matter?

• Combustion

• Respiration

• Fermentation

• Photosynthesis

What percentage of energy is passed on to the next level when primary consumers eat plants?

• 100%

• 50%

• 25%

• 10%

What is the most efficient level at which an animal can get its energy?

• Eating producers

• Eating primary consumers

• Eating decomposers

• Eating secondary consumers

What is released when we burn fossil fuels in power plants?

• Stored energy to generate electricity

• New energy

• Kinetic energy

• Potential energy

How can electrons be induced to flow in a solar cell?

• By using geothermal energy

• By direct interaction with light particles

• By using wind energy

• By burning fossil fuels

What can improve our use of natural resources and quality of life?

• Ignoring energy infrastructure

• Decreasing renewable energy use

• Improving energy efficiency

• Increasing fossil fuel use