Energy Stores and Systems | GCSE Physics Practice
Energy cannot be created or destroyed, only transferred between different stores.
Name the energy store in a moving car.
What is Energy Stores and Systems | Practice?
"The various forms in which energy can be held within a system."
Which law states that energy cannot be created or destroyed?
Why can efficiency never be 100% in a mechanical system?
A 5 kg weight is lifted 2 metres. Calculate its GPE (g = 9.8).
Which formula is used to calculate kinetic energy?
Energy Systems
Main stores: Kinetic, GPE, Elastic, Thermal, Chemical, Nuclear, Electrostatic, Magnetic.
A system is an object or group of objects.
Closed systems have no net change in total energy.
Energy is transferred by heating, waves, electric current, or mechanical work.
Exam Tip: When asked about energy "stores" in a battery, the answer is always CHEMICAL.
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