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Title:

Energy

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Energy The ability to do work or cause changes in matter Types of Energy Potential: Stored energy or the energy of position Types of Energy Kinetic: motion energy ... – PowerPoint PPT presentation

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Title: Energy


1
Energy
2
Energy
  • The ability to do work or cause changes in matter

3
Types of Energy
  • Potential Stored energy or the energy of
    position

4
Types of Energy
  • Kinetic motion energy the motion of waves,
    atoms, molecules, substances, and objects

5
Forms of Energy
  • Energy comes in many forms such as heat,
    electricity, sound, solar and light.
  • Energy can be transformed from one kind to
    another.

6
Source of Energy
  • Almost all of the energy on Earth started or
    originated with the sun.
  • Energy from the sun is called Solar Energy.
  • Solar Energy comes in the form of heat or light.

7
Heat (Thermal) Energy
  • Heat Energy is measured by temperature.

8
Light Energy
  • Light Energy travels in waves that you see.

9
Sound Energy
  • Sound energy travels in waves that you hear.

10
Electrical Energy
  • Electrical Energy is energy caused by the flow of
    electric charges through a conductor.

11
Energy Transformation
  • Plants use light energy from the sun to make
    food. The light energy has been transformed and
    stored in the plant matter.

12
Energy Transformation
  • The plants are buried and after millions of years
    turn into fossil fuels.

13
Energy Transformation
  1. The fossil fuels are burned releasing stored
    energy in the form of heat.

14
Energy Transformation
  1. The power plant transforms the heat energy into
    electrical energy.

15
Energy Transformation
  • The electrical energy is moved from the power
    plant to a home. When a lamp is turned on, the
    electrical energy is changed to light and heat
    energy.

16
Energy Quiz
17
Sample TAKS Question
  • Which of these pictures shows electrical energy
    being changed to light and sound energy?
  • B.
  • C. D.

18
Incorrect Answer
  • A.
  • The fire is transforming energy stored in the
    wood into heat and light energy.

19
Correct Answer
  • B.
  • The television is transforming electrical energy
    into light and sound.

20
Incorrect Answer
  • C.
  • The toaster is transforming electrical energy to
    heat energy.

21
Incorrect Answer
  • D.
  • The windmills are transforming wind energy into
    electrical energy.
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