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Mrs. Oulton Birt

Mrs. Oulton Birt. Energy and Electrical Circuits …An Introduction. Electrical Potential (potential Energy). Energy Is the Ability To Do Work We are going to look at energy – what it is, how we control and convert it. We need to think about what energy is and what POTENTIAL it has…

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Mrs. Oulton Birt

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  1. Mrs. OultonBirt • Energy and Electrical Circuits …An Introduction

  2. Electrical Potential(potential Energy) • Energy Is the Ability To Do Work • We are going to look at energy – what it is, how we control and convert it. We need to think about what energy is and what POTENTIAL it has… • http://www.youtube.com/watch?v=Rn470XtSYK0

  3. What Is Energy? • Energy is defined as the ability to produce change or do work, and that work can be divided into several main tasks we easily recognize:

  4. Types of energy… • Energy produces light. • Energy produces heat. • Energy produces motion. • Energy produces sound. • Energy produces growth. • Energy powers technology.

  5. Forms of Energy • There are many forms of energy, but they all fall into two categories: • Stored (potential) energy • Working (kinetic) energy

  6. Potential Energy • Potential Energy is stored energy .There are several forms of potential energy, including:

  7. Potential Energy…. • Chemical Energy • Stored Mechanical Energy • Nuclear Energy • Gravitational Energy

  8. Look for signs of energy… • http://www.youtube.com/watch?v=Jnj8mc04r9E

  9. Types of kinetic Energy: • Electrical Energy ex lightning • Radiant Energy ex light or radio waves • Thermal Energy, or heatex geothermal • Motion Energy ex wind • Sound Energy

  10. Kinetic Energy • Kinetic Energy is motion—the motion of waves, electrons, atoms, molecules, substances, and objects.

  11. Now think about it… • When we turn on our flashlight, chemical energy stored in the batteries is converted into… • light energy. • When we turn on the television, electrical energy changes into… • light and sound. (and a little heat is also produced) • When we move a vehicle, the engine converts the chemical energy stored in the fuel into… • heat, sound and kinetic energy. Note that the heat and the sound that are produced are not desirable. • An electric cooker in our homes changes electrical energy into …. • heat and light.

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