'Gravitational pe' diaporamas de présentation

Chapter 9 ENERGY

Chapter 9 ENERGY. Energy can change from one form to another without a net loss or gain. Energy may be the most familiar concept in science, yet it is one of the most difficult to define.

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Unit 3 : Energy

Unit 3 : Energy. Energy can change from one form to another without a net loss or gain. Work. Work : transfer of energy through motion force applied over a distance ( no move, no work ) unit of measure is joules ( J ). W : work (J) F : force (N) d : distance (m). W = Fd.

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Chapter 7 Work and Kinetic Energy

Chapter 7 Work and Kinetic Energy. Reading and Review. Force and Work. a) one force b) two forces c) three forces d) four forces e) no forces are doing work. A box is being pulled up a rough incline by a rope connected to a pulley. How many forces are doing work on the box?.

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Work, Power & Energy

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Work, Energy & Power

Work, Energy & Power. Specific Instructional Objectives. At the end of the lesson, students should be able to: Show understanding of the Physics concept of Work Correctly identify Work from given situations Recall and show understanding of the formula to calculate work done

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ConcepTest 6.1 To Work or Not to Work

ConcepTest 6.1 To Work or Not to Work. Is it possible to do work on an object that remains at rest?. 1) yes 2) no. Work requires that a force acts over a distance . If an object does not move at all, there is no displacement , and therefore no work done. displacement. N. Pull.

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Energy and Its Forms

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Kinetic and P otential Energy

Kinetic and P otential Energy. Energy and Work are closely related. Work is a transfer of Energy SI unit for work is Joules (J) Energy is the capacity to do Work We recognize it by the changes it causes We use energy to walk upstairs . (work). Kinds of Energy.

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Matter & Energy #2

Matter & Energy #2. Kinetic & Potential Energy Energy Sources & Alternatives. Energy. Energy- Energy is the ability to do work, and to do work we need energy. Ex. A stretched slingshot has the ability to do work The units for energy is the Joule (J).

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Kinetic and Potential Energy

Kinetic and Potential Energy. Potential Energy. An object can have potential energy by virtue of its surroundings. Familiar examples of potential energy: A wound-up spring A stretched elastic band An object at some height above the ground. Potential Energy.

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Energy & Work

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Pearson Prentice Hall Physical Science: Concepts in Action

Pearson Prentice Hall Physical Science: Concepts in Action. Chapter 15 Energy. 15.1 Energy and Its Forms. Objectives: 1. Describe and compare how energy and work are related 2. Explain what factors kinetic energy of an object depends on

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ENERGY, WORK and POWER

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Unit III Energy

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Agenda

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Agenda

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Agenda

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Module 5, Recitation 3

Module 5, Recitation 3. Concept Problems, Gravitational Potential Energy. ConcepTest Sign of the Energy. Is it possible for the gravitational potential energy of an object to be negative?. 1) yes 2) no. ConcepTest Sign of the Energy.

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Energy transformations

Energy transformations. PE & KE. Converting PE to KE. More useable forms of energy are?. Forms of Energy. Potential Energy Chemical Mechanical Nuclear Gravitational. Kinetic Energy Motion Sound Electrical Radiant Thermal. Energy Transformations.

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DO NOW

DO NOW. Q1. Give 1 example of kinetic energy Q1. Give 3 examples of potential energy. DO NOW (ANSWERS). Q1. Give 1 example of kinetic energy: A moving car, a rolling ball, a galloping horse Q1. Give 3 examples of potential energy 1. Chemical potential energy in food or fuel

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