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 conversion occurs when a rock falls?

Back

Potential energy is converted to kinetic energy.

Front

Where is potential energy the greatest when a ball is projected into the air?

Back

At the highest point of its trajectory.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Why does conduction occur more easily in solids and liquids than in gases?

Back

Particles in gases are farther apart and move faster, making it harder for them to transfer heat.

Front

What happens to energy when gasoline is burned in a car engine?

Back

Chemical energy is converted into mechanical energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state.

Front

Give an example of energy transformation in a roller coaster.

Back

As the roller coaster climbs, kinetic energy is converted to potential energy; as it descends, potential energy is converted back to kinetic energy.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to temperature.