Page 60 - Science Course 2 (Book 2)

Mo9-L3a: What are Kinetic and Potential Energy?

Let’s Begin Kinetic energy is the energy an object has because it
is in motion.

What is Energy?

Energy is the ability to cause a change.

Anything that is in motion has kinetic energy,
including large objects that you can see as well as
small particles, such as molecules, ions, atoms, and
electrons.

Wind, coal, nuclear fuel, Earth’s interior, and the Sun
also are sources of energy that can be transformed
into other forms of energy, such as electrical energy.

Key Concept

What are Kinetic and Potential Energy?

What is Energy? When the blades of
wind turbines rotate,
they turn a generator
that changes the
kinetic energy of the
moving blades into
electric energy.

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