Topic 6.9 and 6.10 - Quizizz

Multiple Choice

What is the main process by which hydroelectricity is generated?

• Kinetic energy of moving water spins a turbine, which powers a generator

• Solar panels convert sunlight into electricity

• Wind turbines use wind to generate electricity

• Burning fossil fuels to create steam that spins a turbine

Dropdown

The gravitational ​

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energy of the water in the reservoir is transformed into ​

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energy when the water flows down to the turbine. The ​

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the dam is located above the turbine, the more ​

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can be generated. The higher the ​

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and the amount of water that flows from the reservoir, the more energy can be generated.

Multiple Select

Two major impacts of water impoundment behind dams

• sedimentation

• releasing air pollutants

• flooding of ecosystems

• releasing GHGs

Multiple Select

Which of the following are drawbacks of hydroelectric dams? (Select all that apply

• Flooding of habitats behind the dam

• Increased air pollution during electricity generation

• Sedimentation changing downstream conditions

• Expensive initial construction

Multiple Choice

Which of the following is NOT a benefit of hydroelectric dams?

• No GHG emissions during electricity generation

• Reliable electricity source

• Flooding of downstream wetlands

• Tourist attraction

Multiple Choice

What is the energy that comes from within the Earth itself?

• geothermal energy
• nuclear energy
• wind energy
• solar energy

Multiple Choice

Which of the following is a key difference between geothermal energy used for electricity generation and a ground source heat pump?

• Geothermal energy uses heat from magma, while ground source heat pumps use heat stored from the sun.

• Both use heat from magma deep in the earth.

• Ground source heat pumps require drilling thousands of meters into the ground.

• Geothermal energy uses heat stored from the sun, while ground source heat pumps use heat from magma

Multiple Choice

What is injected into the ground to be heated when geothermal energy is used?

• Oil

• Oxygen

• Milk

• Water

Multiple Select

Select all the advantages of geothermal energy compared to fossil fuel electricity.

• Much less CO2 emission

• No release of particulate matter or toxic gases

• Unlimited access everywhere on earth

• Potentially renewable if water is reused

Multiple Choice

True or False - Everywhere on earth has potential access to geothermal energy, if they are willing to make the investment

• True

• False