Flashcards
Physics- Energy
Flashcards do conjunto (8)
- 1Principle of the conservation of energyEnergy cannot be created or destroyed.
- 2Work Done, W (joules) =force applied, F x distance moved along the line of action of the force, s
- 3Change in object's gravitational potential energy store =weight, N x change of height
- 4ΔEp Change of gravitational potential energy store =m g Δh
mass x gravitational field strength x change in height - 5Ek= Kinetic energy =1/2 m v^2
1/2 x mass x speed squared - 6efficiency =useful output energy transferred by the device
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total input energy supplied to the device - 7Problem: Friction between the moving parts causes heating.... how would you improve the efficiency?LUBRICATE!
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- Descrição
- Year 10 Physics FlashCards sobre Physics- Energy, criado por Emilia Taddonio em 22-05-2017.
- Criado por
- Emilia Taddonio
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