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# Kinds energy

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### Kinds energy

1. 1. Warm - up • What temperature on the Celsius scale is equivalent to 373K? • Which temperature is colder 0 F or 200 K?
2. 2. What is Energy? Different Kinds of Energy
3. 3. What is Energy? •The ability to do work.
4. 4. Can you make things move? •Then you have energy… •…but there are seven different kinds of energy…
5. 5. Chemical Energy •What holds atoms in molecules together •Can be released by chemical reactions like burning wood
6. 6. Electrical Energy •The movement of electrons through matter •Electricity is a form of electrical energy
7. 7. Heat Energy •The random motion, or vibration, of atoms in matter •The faster the atoms vibrate the more heat energy they have
8. 8. Light Energy •The vibrations of electrically charged particles •Yes, whenever you are looking at light, you are looking at energy
9. 9. Mechanical Energy •Total energy of motion and position of an object •ME=PE+KE •When you ride a bike you use mechanical energy
10. 10. Nuclear Energy •Holds protons and neutrons together in an atom’s nucleus •Powers the sun and nuclear power plants
11. 11. Sound Energy •Vibrates air molecules •The air molecules move tiny bones in your ear •The message of sound then moves to your brain •Can also vibrate objects
12. 12. Energy can be changed from one form to another •Chemical energy in gasoline is changed to heat energy and then to mechanical energy in a car •Law of Conservation of
13. 13. Gravitational Potential Energy • Gravitational potential energy= weight x height • Measured in Joules (J) • Gravity = 1