PPT-Chapter 5 – WORK and ENERGY

52 MECHANICAL ENERGY ENERGY ability to do WORK ENERGY ability to do WORK the energy of an object that is due to the objects motion KINETIC POTENTIAL the energy associated with . 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:. 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). Chapter 8. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 8-1. Potential Energy. Potential energy. . (symbol = . U. ) . is . energy . (Joules!). Associated . with . configuration. Conservation of energy . Conservative and non-conservative forces. Chapter 8: Potential Energy and Conservation of Energy. Reading assignment: Ch. 8.1 to 8.5. Homework: QQ4, QQ5, AE7, AE8, AE11, 3, 6, 7, 10, 14, 15, 16, 22, 29, 40, 63. 18.1 Renewable Energy Today (2004). 18.2 Alternative Energy and Conservation p455-473. 1. Chapter 18 renewable Energy. Key terms. Renewable energy. Passive solar hearing. Active solar heating . Biomass fuel. 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. I. Essential Question. How are Energy, Work, and Power Related?. What are the two main types of energy? . II. Key Vocabulary . Energy: . the ability to do work or cause change . Kinetic energy:. the energy of an object in motion. You . need energy to force an object to move. You need energy to make matter change. . The . blowing wind, the warm Sun and a falling leaf are all examples of energy in use. .. . Energy makes motion and change possible.. Work Energy and Momentum Physics Unit 3 This Slideshow was developed to accompany the textbook OpenStax Physics Available for free at https:// openstaxcollege.org/textbooks/college-physics By OpenStax Unit 4: Work, Power, and Energy I. Work When a force acts upon an object to cause a displacement of the object, it is said that work was done upon the object. There are three key ingredients to work: Why not?. Does energy just disappear? No!. Law of Conservation of Energy. : energy cannot be created nor destroyed.. -energy can change forms. 1. st. Law of Thermodynamics. : energy can do work, or produce heat, but it is always conserved.. 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..