Unit 4: Renewable and Nonrenewable Resources

Front

What is a renewable resource?

Back

A renewable resource is a natural resource that can be replenished naturally over time, such as solar energy, wind energy, and hydropower.

Front

What is a nonrenewable resource?

Back

A nonrenewable resource is a natural resource that cannot be replenished in a short period of time, such as fossil fuels (coal, oil, natural gas) and minerals.

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting chemical energy in food to mechanical energy in movement.

Front

What type of energy transformation occurs in a hydroelectric power plant?

Back

Mechanical energy from flowing water is transformed into electrical energy.

Front

What is the role of a turbine in a hydroelectric power plant?

Back

The turbine converts the mechanical energy of flowing water into rotational energy, which is then used to generate electricity.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food or fuel, which can be released during a chemical reaction.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object, which is the energy of motion and position.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons, which can be used to power devices and appliances.

Front

What is an example of a renewable energy source?

Back

Solar energy is an example of a renewable energy source, as it is derived from the sun and can be harnessed continuously.

Front

What is an example of a nonrenewable energy source?

Back

Coal is an example of a nonrenewable energy source, as it takes millions of years to form and cannot be replenished quickly.