A Level Physics Practice Test: Work, Energy and Power — Flashcards | A Level Physics | FatSkills

A Level Physics Practice Test: Work, Energy and Power — Flashcards

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Work is the amount of energy transferred when an object moves a distance due to an external force. Energy is the capacity to do work or perform some action. Power is the rate at which energy is transferred or transformed with respect to time. 
The equation for work is: W = F. d. 
The equation for power is: P = W/t. 
The SI unit of work is Joule (J). The SI unit of power is Watt (W). 

Energy can exist in many forms, but all energy is classified as either kinetic or potential energy.

Kinetic energy is the energy associated with motion. Potential Energy is energy due to an object's position. 
 

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As the object gains speed, it's G.P.E (Gravitational Potential Energy)
varies depending on altitude
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