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Revision notes on 3.6.1 Work Done for the OCR A Level Physics syllabus, written by the Physics experts at Save My Exams.
Review the units of work, energy, force, and distance. Use the equations for mechanical energy and work to show what is work and what is not. Make it clear why holding something off the ground or carrying something over a level surface is not work in the scientific sense.
Work Formula. To calculate the work done, we use a simple formula: \(\displaystyle W = F \cdot d \cdot \cos(\theta) \) W is the work done (measured in Joules). F is the force applied (measured in Newtons). d is the distance the object moves (measured in meters). (cos(θ) is the cosine of the angle between the force applied and the direction of ...
Work Done is a quantity which represents energy transferred between systems and is only done when a force moves something. Express mathematically, Work Done = Force × Distance moved in direction of Force. The SI unit for Work Done is the Joule (J), same as energy.
You can test your concepts in this Work done quiz by taking this online practice quiz. Concepts you must be comfortable with before taking this quiz are. Motion (Kinematics 1D and 2D) Force; Work Done and; work energy theorem; This quiz only includes algebra-based questions on the concept of work.
Use our revision notes to user and understand the work done equation and compare it to energy transferred. Learn more.
The SI unit of work is joule (J). Joule is defined as the work done by a force of one newton causing a displacement of one meter. Sometimes, newton-metre (N-m) is also used for measuring work.
