PPT-Chapter 6 Work and Machines

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. Let be the probability or fraction of time of being in state Balancing the 64258ow between state 0 and 1 yields 951 and similarly balancing the 64258ow between state 1 and 2 951 Together with the normalization 1 we get 1 ii The maximal throughp 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. A. 5. th. Grade Smarty Pants?. Simple Machines Song. A bar that turns against . an unmoving point is called a…. Wheel and Axel. Lever. Pulley. Wedge. Video. A bar that has an inclined plane wrapped around it is called a…. Work is done when a force is applied through . a distance. Work input: the work that you do on a machine. Work output: the work done by the machine. Machines do not increase the amount of work done. Work output is never greater than work input.. Work. Work is done when a . force . (push or pull) causes an object to move in the . same direction . that the force is applied.. Formula: Work= Force x Distance . (W = F x D). If there is no movement, there is no work.. 1. Lecture. 21. Using. . Machines. Ozgur. . Unal. Machines. A . machine. . is a device . that. . makes. . doing. . work. . easier. .. Try. . to. . explain. . how. . the. . machines. . you. Why do we use machines?. Machines make doing work easier.. But they do not decrease the work that you do.. Instead, they . change the way you do work.. In general you trade more force for less distance or less force for more distance. IPC Spring . 2014. Energy, Work, Power & Machines. 1. Energy. is the ability to do work. .  . Potential energy. – stored energy or energy due to position.  . PE=m g h . m. is mass (kg). g. 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. SPS8: Students will determine relationships among force, mass, and motion.. SPS8.e: Calculate amounts of work and mechanical advantage using simple machines.. Work. When a force causes an object to move – work is done.. Electrical Machines Getu.G:getugaa@yahoo.com. Chapter Outline. Introduction. What is a machine?. A machine is simply a device that makes doing work easier. . Even a sloping surface can be a machine. . Using Machines. Mechanical Advantage. Even though machines make work easier, they don’t decrease the amount of work you need to do. . 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..