1 / 9

The Nature of Energy

The Nature of Energy. An Introduction. What is energy?. Energy is…. Energy is the ability to do work , to cause change. Work is done when an applied force causes a movement over a distance. Work is measured in joules. Things that move cause change. A force is a push or a pull.

graceland
Télécharger la présentation

The Nature of 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. The Nature of Energy An Introduction

  2. What is energy?

  3. Energy is… • Energy is the ability to do work, to cause change. • Work is done when an applied force causes a movement over a distance. Work is measured in joules. • Things that move cause change. • A force is a push or a pull. • Energy is not matter.

  4. Energy is… • Everything around you has energy but you only notice it when a change or transformation takes place. • Energy cannot be created or destroyed. It can only be transformed. This is known as the Law of Conservation of Energy.

  5. Kinetic Energy • One of the two ways that energy can be categorized is as kinetic energy. • Kinetic energy is the energy an object has due to its motion. If it doesn’t move then it doesn’t have that kind of energy. • Kinetic energy depends on speed and mass. An object’s kinetic energy can be determined by mv2/2 (mass times velocity squared divided by 2) • The faster an object is moving the more kinetic energy it has. • The heavier an object, the more kinetic energy.

  6. Kinetic Energy • The faster an object goes the more kinetic energy it has. • The heavier (greater mass) an object is the more kinetic energy it has.

  7. Potential Energy • An object can have energy even if it is not moving! • Energy stored in an object due to its position is called potential energy.

  8. Gravitational Potential Energy • Gravitational potential energy is dependent on height and weight. The higher or heavier an object, the greater the potential energy.

  9. Potential vs. Kinetic

More Related