PPT-ENERGY,WORK, POWER, AND MACHINES

IPC Spring 2014 Energy Work Power amp Machines 1 Energy is the ability to do work   Potential energy stored energy or energy due to position   PEm g h m is mass kg g. What do the F and d stand for?. What are the units for F and d?. What do the W and t stand for?. What is the unit for t?. Work is a form of energy. What is the unit for work and energy?.  . Work and Power. 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?. In text: Ch 5. Do you already know these words?. Work – . Energy – . Power – . 2.3.1 Outline . what is meant by work.. First a demo:. One volunteer. Hold a couple of books and walk across the room.. Work . = W. The product of the force . F . applied to an object over a distance . d . in which the object travels as a result of the force. Joule . (J) . is the base unit of work. (Force and distance must be parallel to each other). Energy. The capacity of vigorous activity. The ability to act. The capacity of a body or a system to do work (and heat). . . Mechanical . Energy: Kinetic . + Potential. h. Use directly for hydro . energy storage . Lets see what you already know.. What is a machine? . A thing that makes work easier to do. . Can you name some simple machines? . Scissors, screws, levers, hammers, wheels and axles,...... And more complicated machines? . 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. The transfer of energy to an object by the application of a force that causes the object to move in the direction of the force.. work. Work is calculated by multiplying the ________ times the ________ that the object moves.. 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).. Energy, Work, & Power SP3. Students will evaluate the forms and transformations of energy. a. Analyze, evaluate, and apply the principle of conservation of energy and measure the components of work-energy theorem by Chapter 6 Work and Machines A. Work Work transfer of energy through motion force exerted through a distance W = Fd Distance must be in direction of force! W : work (J) F : force (N) d : distance (m) Work, Power, and Machines Physical Science Chapter 13 Section 1 Work Occurs when a force causes an object to change its motion or position. Calculated by multiplying the force by the distance over which the force is applied. OBJ. : . Students will determine relationships among force, mass, and motion.. OBJ. : . Calculate amounts of work and mechanical advantage using simple machines.. Work. When a force causes an object to move – work is done..