3rd Grade-Ch. 12 Lesson 3 How do simple machines affect work
3rd Grade-Ch. 13 Lesson 1 What is energy?
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Ch. 13 Lesson 1 What is energy?
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Transcript of 3rd Grade-Ch. 13 Lesson 1 What is energy?
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Ch. 13Lesson 1
What is energy?
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energy •ability to do work & cause a change in matter
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examples of forms of energy:
1. Heat
2. Light energy
3. Electrical energy
4. Sound energy
5. Chemical energy
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potential energy
• Stored energy
• Ability to change into another kind of energy to do work or cause a change
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fuel• source of potential energy
• examples:
• fossil fuels- oil, coal, gasoline – energy comes from sunlight
• batteries
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changes to
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kinetic energy•energy of motion
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kinetic energy• examples:
–car burning gasoline car moves
–skier skiing downhill
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energy