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Energy What are potential and kinetic energy?. First some review… Write down the definition of energy. Write down the four of the seven types of energy.

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Presentation on theme: "Energy What are potential and kinetic energy?. First some review… Write down the definition of energy. Write down the four of the seven types of energy."— Presentation transcript:

1 Energy What are potential and kinetic energy?

2 First some review… Write down the definition of energy. Write down the four of the seven types of energy and an example of each.

3 Energy… …is the ability to make things move

4 The seven types of energy… Chemical - gasoline, Light – flash light, Heat – burner on a stove, Nuclear - sun, Mechanical - car, Sound – music on the radio, Electrical - lightning

5 Definitions Kinetic Energy: the energy of motion Potential Energy: stored energy

6 A Roller Coaster A roller coaster speeds along its track. It has kinetic energy because it is moving.

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8 A Roller Coaster As it slows to a stop at the top of a hill, it has potential energy because of where it is. It has the potential to move because it is above the ground and has somewhere to go.

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10 What type of energy is this? (Remember the seven types?)

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12 Right, mechanical. What if the cars crashed and burned? What type would it be?

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14 Right, heat.

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16 Substances like wood, coal, oil, and gasoline have stored energy because of their chemistry – they can burn Stored energy is potential energy

17 Potential Energy can be changed into Kinetic Energy Also Kinetic Energy can be changed into Potential Energy

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