Law of Conservation of Energy

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What type of energy is converted into mechanical energy when gasoline is burned in a car engine?

Back

Chemical energy.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically related to its height above the ground.

Front

At what point does a pole vaulter have the greatest gravitational potential energy?

Back

Just before he starts to fall to the ground.

Front

What type of energy do muscles convert chemical energy into?

Back

Mechanical energy.

Front

What are the energy transformations that occur in an alarm clock when it goes off?

Back

Electrical energy is transformed into mechanical energy and then into sound energy.

Front

What happens to the stored chemical energy in logs when they are burned in a fireplace?

Back

It is transformed into heat and light energy.

Front

Can energy be created or destroyed according to the Law of Conservation of Energy?

Back

No, energy cannot be created or destroyed; it can only change forms.

Front

What is an example of energy transformation in everyday life?

Back

An example is a toaster converting electrical energy into thermal energy to toast bread.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.