PPT-Work, Energy and Power

In text Ch 5 Do you already know these words Work Energy Power 231 Outline what is meant by work First a demo One volunteer Hold a couple of books and walk across the room. 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. E = U+K. . h. Chemical Energy:. 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…. 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.. 14) explain the relationship between work and power (using narrative and mathematical descriptions) and apply to realistic situations (GPS, HSGT) (SCPH_C2005-14). 14a) calculate the work on a body by constant force. AP Environmental Science. What is Energy?. Energy is a . measurable quantity. that can be stored in a physical system. Energy can be . transferred. from one system to another and so . cause changes. Lecture slides by. Mehmet . Kanoglu. Copyright © The McGraw-Hill Education. Permission required for reproduction or display.. Thermodynamics: An Engineering Approach . 8th . Edition. Yunus A. . Ç. engel, Michael A. Boles. 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 . Nature of science: . Theories: Many phenomena can be fundamentally understood through application of the theory of conservation of energy. Over time, scientists have utilized this theory both to explain natural phenomena and, more importantly, to predict the outcome of previously unknown interactions. The concept of energy has evolved as a result of recognition of the relationship between mass and energy.. 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 Work, Power & Energy Work Work is the product of force and distance For a force to do work on an object, some of the force must act in the same direction as the object moves. If there is no movement, no work is done. More Power!!!!!. What does he mean?. Work. Work is the product of . force and distance. For a force to do work on an object, the object must . move in the same direction of the force. Any force that . Reminders about work and energy. 1 joule is equivalent to the energy required for a force of exactly 1 newton to act through a distance of exactly 1 . mete. r. Principle of conservation of energy. : energy cannot be created nor destroyed; it can only be transformed from one type to another.. is essential for life, and is required to fuel many different body processes, growth and activities. . These include:. keeping the heart beating;. keeping the organs functioning; . maintenance of body temperature;.