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 happens to energy during a transformation?

Back

During an energy transformation, some energy is always converted to thermal energy, which is often considered 'lost' to the system.

Front

What type of energy is used to cook food?

Back

Thermal energy is used to cook food.

Front

How does a fire warm you?

Back

A fire warms you by transferring thermal energy.

Front

What types of energy does the sun provide?

Back

The sun provides light and thermal energy that can be harnessed for solar power.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in a substance.

Front

What is an example of energy transformation?

Back

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

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, often converting kinetic energy into thermal energy.

Front

Which material does NOT reduce friction?

Back

Cotton does NOT reduce friction.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.