Energy Stores & Transfers Flashcards

All 5 cards in this deck

What are the three ways the energy of a system can be changed?

By work done by forces, by electrical equipment, and by heating.

Describe the energy transfer when an object falls towards the ground.

Energy is transferred from the gravitational potential store of the object to its kinetic store.

Describe the energy transfer when a moving car brakes to a stop.

Energy is transferred from the kinetic store of the car to the thermal store of the brakes and surroundings.

Describe the energy transfer when a kettle heats water.

Energy is transferred electrically from the mains to the thermal store of the water.

Name any four energy stores.

e.g. kinetic, gravitational potential, thermal and chemical (others: elastic potential, magnetic, electrostatic, nuclear).