PLTW Unit 1 Assessment

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What are renewable energy sources?

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Renewable energy sources are energy sources that are replenished naturally and can be used repeatedly. Examples include solar, wind, hydro, geothermal, and biomass energy.

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What are fossil fuels?

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Fossil fuels are natural substances formed from the remains of ancient plants and animals, primarily consisting of coal, oil, and natural gas. They are non-renewable and contribute to environmental pollution.

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What is energy efficiency?

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Energy efficiency refers to using less energy to perform the same task or function. For example, using LED bulbs instead of incandescent bulbs.

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How do fossil fuels impact the environment?

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Burning fossil fuels releases greenhouse gases, contributing to air and water pollution and climate change.

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What is the greenhouse effect?

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The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, leading to an increase in global temperatures.

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What is climate change?

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Climate change refers to significant changes in global temperatures and weather patterns over time, largely driven by human activities such as burning fossil fuels.

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What is solar energy?

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Solar energy is energy harnessed from the sun's rays, which can be converted into electricity or heat.

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What is wind energy?

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Wind energy is the energy obtained from the wind using turbines to generate electricity.

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What is hydroelectric power?

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Hydroelectric power is electricity generated by harnessing the energy of flowing water, typically from rivers or dams.

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What is geothermal energy?

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Geothermal energy is heat energy derived from the Earth's internal heat, often used for heating and electricity generation.