<h1>WORK, ENERGY AND POWER</h1> CONTENT <ol> <li>Meaning of Work, Energy and Power</li> <li>Meaning of Potential and Kinetic Energy</li> </ol>   <h2>Meaning of Work</h2> Work is said to be done whenever a force or load moves through a distance. i.e. work = force × distance moved in the direction of the force (f × d). <img class="size-full wp-image-11900 aligncenter" src="https://classhall.com/wp-content/uploads/2017/04/work-done-1.jpg" alt="Work done" width="386" height="220" /> Mathematically W(d) = f × d The unit of work is joules with symbol J.   <h2>Force</h2> Force is that which changes a body’s state of rest or uniform motion in a straight line. It can as well be expressed as: Force = mass × acceleration i.e. F = m × a Where: F = force, M = mass and A = acceleration The unit of force is Newton (N). If force = mass × acceleration Work can be given as: Work = Mass × acceleration × distance. Also, W = F × S Where, W = Work done is measured in <strong>Joules (J)</strong>