energy

According to the classical definition, what is energy?

• The ability to eat

• The ability to sleep

• The ability to do work

• The ability to play

What is the law of conservation of energy?

• Energy can be created and destroyed

• Energy can be transformed from one form to another

• Energy can only be wasted

• Energy remains constant in an isolated system

What are the two forms in which sources of energy can be classified?

• Indoor and outdoor sources

• Renewable and non-renewable sources

• Natural and artificial sources

• Hot and cold sources

Which of the following is a renewable source of energy?

• Solar energy

• Petroleum

• Coal

• Natural gas

What is geothermal energy derived from?

• Heat inside the earth

• Water

• Sunlight

• Wind

How is wind energy harnessed to produce electricity?

• Using solar panels

• Using geothermal energy

• Using wind turbines

• Using hydro power

What is biomass made of?

• Metal

• Organic matter from plants and animals

• Glass

• Plastic

Which source of energy can generate electricity by using moving water?

• Wind energy

• Geothermal energy

• Solar energy

• Hydro power energy

Why is it vital to limit dependency on non-renewable sources of energy?

• They are cheaper

• They are unlimited

• They cause pollution

• They are sustainable