Forms of Energy and Energy Resources

What are renewable energy sources? Provide examples.

• Coal, oil, natural gas

• Solar, wind, hydro, geothermal, and biomass energy

• Electricity, fuel, heat

• Nuclear energy

What are non-renewable energy sources? Provide examples.

• Solar and wind energy

• Fossil fuels (coal, oil, natural gas) and nuclear energy

• Hydroelectric and geothermal energy

• Biomass and biofuels

Explain how solar energy is harnessed and used as a form of energy.

• Solar panels capture sunlight and convert it into electricity.

• Solar energy is harnessed by extracting natural gas.

• Solar energy is harnessed by using wind turbines.

• Solar energy is harnessed by burning fossil fuels.

How is wind energy generated and utilized?

• Wind energy is generated by nuclear reactions and it is utilized to power factories.

• Wind energy is generated by burning fossil fuels and it is utilized to power vehicles.

• Wind energy is generated by capturing sunlight and it is utilized to heat homes.

• Wind energy is generated by harnessing the power of the wind through wind turbines, and it is utilized to generate electricity.

Describe how hydroelectric power is produced and its advantages as an energy resource.

• Hydroelectric power is a renewable energy resource that produces minimal greenhouse gases and provides a reliable source of electricity.

• Hydroelectric power is a non-renewable energy resource that produces a lot of greenhouse gases.

• Hydroelectric power is produced by burning fossil fuels and is not a reliable source of electricity.

• Hydroelectric power is not a reliable source of electricity and is expensive to produce.

What are fossil fuels? How are they formed and what are their environmental impacts?

• Fossil fuels are man-made fuels created in laboratories, and their environmental impacts include increased biodiversity and improved air quality.

• Fossil fuels are non-renewable energy sources formed from volcanic eruptions, and their environmental impacts include increased wildlife habitats and reduced deforestation.

• Fossil fuels are natural fuels formed from the remains of ancient organisms, and their environmental impacts include air and water pollution, greenhouse gas emissions, and habitat destruction.

• Fossil fuels are renewable energy sources formed from wind and solar power, and their environmental impacts include reduced carbon emissions and decreased pollution.

Define kinetic energy and provide examples of its application.

• Kinetic energy is the energy of an object due to its position. Examples include a stationary airplane, a parked bicycle, and a motionless roller coaster.

• Kinetic energy is the energy an object possesses due to its motion. Examples include a moving car, a swinging pendulum, and a rolling ball.

• Kinetic energy is the energy produced by heat. Examples include a burning candle, a hot stove, and a boiling pot of water.

• Kinetic energy is the energy stored in an object at rest. Examples include a stationary rock, a parked car, and a still pendulum.

Explain potential energy and give examples of its occurrence in everyday life.

• Potential energy is the energy that an object has due to its position or state. It is stored energy that has the potential to do work. Examples of potential energy in everyday life include a stretched rubber band, a book on a shelf, and a roller coaster at the top of a hill.

• A car moving at a constant speed

• A light bulb turned off

• A ball at rest on the ground

Differentiate between renewable and non-renewable energy sources.

• Renewable energy sources can be replenished naturally, while non-renewable energy sources cannot be easily replenished.

• Renewable energy sources are only used in developing countries, while non-renewable energy sources are used in developed countries.

• Renewable energy sources are harmful to the environment, while non-renewable energy sources are eco-friendly.

• Renewable energy sources are more expensive than non-renewable energy sources.

Discuss the importance of diversifying energy resources for sustainable development.

• Diversifying energy resources helps reduce reliance on a single energy source, promotes energy security, and helps mitigate environmental impacts.

• Diversifying energy resources has no impact on sustainable development

• Relying on a single energy source is the best way to ensure energy security

• Environmental impacts are not a concern when it comes to energy resources