๐ Deck 2 โ Energy Transfer & Conservation
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15 Terms
Energy Transfer
Movement of energy from one energy store to another.
Mechanical Energy Transfer
Energy transferred when a force moves an object.
Electrical Energy Transfer
Energy transferred by moving electric charges.
Heating
Energy transferred because of a temperature difference.
Radiation
Energy transferred by waves.
Examples of Radiation
Light and infrared radiation.
Energy Loss
Energy is never lost; it is transferred to another energy store.
Conservation of Energy
Energy cannot be created or destroyed.
Energy Can Only Be
Transferred or transformed.
Television Example
900 J input โ 800 J useful output + 100 J transferred to the internal (thermal) energy store.
Energy Conversion
Energy changes from one energy store to another.
Example of Energy Conversion
Gravitational potential energy โ kinetic energy.
Falling Object
As height decreases, GPE decreases while KE increases.
Total Energy During a Fall
Remains constant.
Relationship Between GPE and KE
Loss of GPE equals gain in KE.