PPT-Work and Energy Work Done

W Fd Units and Direction Positive and Negative Work When Work 0 Work Work W is the energy transferred to an object when a force acting on the object moves it through a distance W F x d. Explaining the Causes of Motion in a Different Way. Work. The . product. of force and the amount of displacement along the line of action of that force.. Units: ft . .. lbs (horsepower). . Newton•meter. 4. th. form IGCSE. Chapter 17 in textbook (p. 142). Reminder: work and energy. In the back of your book:. Define what is meant by . work. . and . energy. List different . forms of energy. N.B.:. NOT fuels…. Jamie,. . Tommy, Jordan. Work. W= F(. cosθ. )d . OR. W= . FΔr. . cosθ. Work Example. A person pulls a toboggan for a distance of 35.0 m along the snow with the rope directed 25.0° above the snow. The tension in the rope is 94.0 N. (a) How much work is done on the toboggan by the tension force? (b) How much work with the same tension parallel to the snow?. ©2009 by Goodman & Zavorotniy . The most powerful concepts in science are called 
"conservation principles". These principles allow us to 
solve problems without worrying much about the details 
of a process. . Work. Work is defined as the force parallel to the direction of motion times the distance.. W = F. (parallel) . . . d = F d . cos. . θ. If the direction of the force is opposite of the motion, the work is considered to be negative.. & . SIMPLE MACHINES. t. he. n. ature. . of Energy. Energy. — the ability to cause . change. Forms of energy include:. . Electrical. Chemical. Thermal. Radiant . Kinetic Energy . — energy in the form of . Section 1: Work and Machines. Section 2: Describing Energy. Section 3: Conservation of Energy. Section 1: Work and Machines. Work. – the transfer of energy that occurs when a force makes an object move. Sandia is a . multiprogram. laboratory operated by Sandia Corporation, a Lockheed Martin Company,. for the United States Department of Energy’s National Nuclear Security Administration. under contract DE-AC04-94AL85000.. Work is done when:. A . force . is exerted on an object. An object has a . displacement . in the same direction as the force. W=. Fdcos. q. SI unit for work is . Joule . (. J. ). 1 J = 1N*m (=0.7376 . Principles of Engineering. Work. . Work. (symbol . W. ) is the energy transferred when a force . F. is applied to an object moving through a . distance . d. .. The SI . unit of work or . energy is the joule (symbol J).. Principles of Engineering. Work. . Work. (symbol . W. ) is the energy transferred when a force . F. is applied to an object moving through a . distance . d. .. The SI . unit of work or . energy is the joule (symbol J).. This lesson Work done as energy transfer Power as the rate of energy transfer Interpreting force/distance graphs Work In physics, work has a special meaning, different to “normal” English. Work Energy transfer diagrams. Different types of energy can be transferred from one type to another. Energy transfer diagrams show . energy types in and out of a process.. Everyday Examples: Law of Conservation of Energy . . 2012. Objectives.. To define work by relating force and displacement. . To . calculate the net work done when many forces are applied to an object. . To . identify several forms of mechanical energy. .