There are many types of energy: kinetic energy energy of an object due to its speed. It also requires highly d Work can be done by you, as well as on you Are you the pusher or the pushee Work is a measure of expended energy Work makes you tired Machines make work easy (ramps, levers, etc.) Unit of Work → Unit of work is Newton metre or Joule. The change in Kinetic Energy … Energy is always associated to strength and strong forces doing work. Ability to do work in a system. Mechanical Energy. 1 Joule = 1 Newton × 1 metre 1 J = 1 Nm Therefore the sum of all energies in the system is a constant. New Concept: Kinetic Energy Table 7-1 Typical Values of Work Work is force times distance…but! workforce credentials for four key energy-efficiency related jobs. The activities are also ideal for high school students to review basic concepts. The energy in a system may take on various forms such as thermal, light, electric, etc… but the energy may neither be created nor destroyed. In Physics, energy is defined as the ability or capacity to do work. It is related to activities like the sport of weight lifting, waves crashing against the shores and many others. Work, Energy, Power Chapter 7 in a nutshell Work is Force times Distance. View Chapter7_1-4_FA05.ppt from STEM 101 at Far Eastern University Manila. Kinetic Energy, Work, Power, and Potential Energy - Kinetic Energy, Work, Power, and Potential Energy 8.01 W05D1 Work: Path Dependent Line Integral Work done by force along path from A to B In order to calculate the ... | PowerPoint PPT presentation | free to view However, in the science of dynamics, __ (44) __ and energy are important factors that can affect the motion of bodies. Power is Work per unit time. gravitational potential energy energy of an object due to position in a gravitational field. Force is the push or __ (45) __ of an object that tends to produce acceleration of the body's motion in the direction of the force. The change in Kinetic Energy is equal to the work. (v) Energy of wind can be used to generate electricity. Apply less force … (iv) Energy in food indirectly comes from the Sun. Energy is the measure of the ability of an object or a system to perform work. Complete the following sentence by inserting suitable words from the box: force, movement, energy, source, work, does, petrol (i) Energy is needed to perform _____. → When a force of 1 Newton moves a body through a distance of 1 metre in its own direction, then the work done is 1 Joule. Work = change in KE Units again… Work done by gravity Gravitational Potential Energy If gravity is the only force doing work… Work and Energy Physics 100 Chapt 5 Physicist’s definition of “work” Atlas holds up the Earth Garcon does work when he picks up the tray Why this definition? 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