Mechanical Energy

What is energy defined as?

• The ability to create matter

• The ability to do work or change

• The force that causes objects to stop

• The speed at which an object moves

In what unit is energy measured?

• Newton (N)

• Watt (W)

• Joule (J)

• Volt (V)

Which of the following is an example of elastic potential energy?

• A ball at the top of a hill

• Energy stored in fossil fuels

• A stretched spring

• A car driving on a road

When a roller coaster is at the highest point of a hill, what type of energy does it primarily possess, and what happens to this energy as it goes down the hill?

• Kinetic energy, which transforms into potential energy

• Thermal energy, which transforms into radiant energy

• Potential energy, which transforms into kinetic energy

• Chemical energy, which transforms into electrical energy