Energy stores — definition?
Locations where energy is held or stored.
Kinetic energy store — role?
Stores energy due to an object's motion.
Thermal energy store — mechanism?
Energy stored in particle vibrations within a substance.
Elastic potential energy — example?
Stored in stretched or compressed objects.
Gravitational potential energy — depends on?
Object’s height and mass.
Chemical energy — stored in?
Bonds of chemical substances.
Energy transfer — process?
Moving energy from one store to another.
Energy transfer in devices — example?
Electrical to light and heat in bulbs.
Forms of energy — include?
Light, sound, thermal, mechanical, magnetic, nuclear.
Conservation of energy — law?
Energy cannot be created or destroyed.
Energy measured in?
Joules (J).
James Prescott Joule — contribution?
Formulated the law of conservation of energy.
Energy changes — caused by?
Heat, work, or chemical reactions.
Wasted energy — example?
Heat produced in electrical appliances.
Energy in devices — example?
Light bulbs convert electrical to light and heat.
Chemical energy in food — role?
Provides energy for body functions.
Energy flow diagrams — purpose?
Show how energy moves between stores.
Energy in everyday objects — example?
Elephant on a box has gravitational potential energy.
Energy in everyday life — involves?
Transfer and transformation during daily actions.
Energy in batteries — stored as?
Chemical energy.
Energy in fossil fuels — released by?
Combustion of chemical bonds.
Energy in a falling object — transfer?
Gravitational potential to kinetic energy.
Testez vos connaissances avec un QCM de 11 questions sur Understanding Energy Stores and Transfers.
1. What does an energy store refer to in physics?
2. In which year did James Prescott Joule formulate the law of conservation of energy?
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