Energy Sources and Uses

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What is a renewable energy source?

A renewable energy source can be replenished naturally over short periods of time.

Name three renewable sources of energy.

Solar power, wind power, and hydroelectric power.

What is the main disadvantage of renewable energy sources?

They can be dependent on weather conditions and require large spaces.

What is a non-renewable energy source?

A non-renewable energy source is one that cannot be quickly replenished and will eventually run out.

Name three non-renewable sources of energy.

Coal, oil, and natural gas.

What is fossil fuel?

Fossil fuels are natural fuels formed from the remains of ancient organisms.

Why is it important to conserve energy?

Conserving energy reduces pollution, saves resources, and can save money.

What environmental impact does burning fossil fuels have?

Burning fossil fuels releases greenhouse gases, contributing to climate change.

How does solar energy generate electricity?

Solar panels convert sunlight directly into electricity using photovoltaics.

What is geothermal energy?

Geothermal energy is the heat from within the Earth used to generate electricity or heat buildings.

What role does energy efficiency play?

Energy efficiency reduces consumption, lowers costs, and decreases environmental impact.

What is biomass energy?

Biomass energy is derived from organic materials, such as plant and animal waste.

How can wind energy be harnessed?

Wind turbines capture the kinetic energy of wind and convert it into electricity.

What is hydroelectric power?

Hydroelectric power is generated by using the energy of flowing water to produce electricity.

How do buildings use energy efficiently?

By using insulation, energy-efficient lighting, and appliances to reduce energy consumption.