Energy Transformations and Conservation of Energy

Front

What happens to potential energy as a roller coaster goes downhill?

Back

Potential energy is converted into kinetic energy.

Front

What is the energy transfer when a pole vaulter runs, plants his pole, rises in the air, and lands?

Back

Kinetic energy is converted to elastic energy, then to gravitational potential 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

Is energy always conserved?

Back

Yes, energy is always conserved.

Front

How can you reduce the amount of friction between two objects?

Back

Reduce the amount of contact between the two surfaces.

Front

What is kinetic energy?

Back

The energy an object has due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

Give an example of energy transformation in a light bulb.

Back

Electrical energy is transformed into light energy and thermal energy.

Front

What type of energy is stored in a compressed spring?

Back

Elastic potential energy.