1 / 20

Energy

Energy. The World Around Us Is Full of Energy. What is Energy?. The ability to do work. Work is …. Force exerted upon an object to cause that object to be displaced W = F x d The Joule is the unit of work. 1 Joule = 1 Newton * 1 meter

ramona-jacobs
Download Presentation

Energy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Energy

  2. The World Around Us Is Full of Energy

  3. What is Energy? • The ability to do work

  4. Work is … • Force exerted upon an object to cause that object to be displaced • W = F x d The Joule is the unit of work. 1 Joule = 1 Newton * 1 meter • A force is exerted upon the object to cause that object to be displaced.

  5. There Are 2 States of Energy • Potential Energy PE • Kinetic Energy KE

  6. Potential Energy • Stored energy as the result of position. Gravitational Elastic

  7. Gravitational Potential Energy • Energy stored in an object as the result of its vertical position or height • Dependent on two variables - the mass of the ball and the height to which it is raised. PEgrav = mass * g * height

  8. Gravitational Potential Energy • It is directly proportional to its height above the zero position • A doubling of the height will result in a doubling of the gravitational potential energy.

  9. What is the Potential Energy?

  10. How Did You Do?

  11. Elastic Potential Energy • Energy stored in elastic materials as the result of their stretching or compressing.

  12. There Are 2 States of Energy • Potential Energy PE = mgh • Kinetic Energy KE

  13. Kinetic Energy • The energy of motion: • Vibrational • Rotational • Translational (motion from one location to another)*

  14. Kinetic Energy • Kinetic energy of an object depends on the mass of the object

  15. So….. • Kinetic energy can be converted into Work! • Work: Force exerted upon an object to cause that object to be displaced

  16. There Are 2 States of Energy • Potential Energy(J) • PE = mgh • Kinetic Energy (J) • KE = ½ mv²

  17. Energy • Law of Conservation of Energy: Energy can not be created or destroyed • All forms of energy can be converted to other forms PE  KE  W

  18. All forms of energy can be converted to other forms: PE  KE  W mgh = ½ mv² = Fd J = J = J

  19. Potential vs. Kinetic Energy • http://www.physicsclassroom.com/mmedia/energy/pe.cfm

  20. Physics:Wile E Coyote and Roadrunner Style • http://www.youtube.com/watch?v=Jnj8mc04r9E&feature=related

More Related