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Work and Energy - Illustrated
  
Go ahead, jump!by Robert S. Donovan on Flickr

When she is jumping the rope, she is changing the potential energy in her muscles to kinetic energy, that moves the body bones. 
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The supreme illusion.by digitalpimp. on Flickr

The train is moving by kinetic energy. The kinetic energy comes from the engine. The engine runs off of electricity and essentially comes from coal. Coal has potential energy that is transferred to electricity.   
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What Have I Done?by tropicaLiving on Flickr

The water is falling due to gravitational potential energy. When it is at the top of the ridge, it has gravitational potential energy. Then when it starts to fall, it changes into kinetic energy. 
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Hawthorne => Esplanade =>by jesse.millan on Flickr

The man moving on the bike is kinetic energy. He is moving the bike with his muscles. His muscles get the energy from ATP which you get from food. He is also doing work on the bike. We use this in biology. 
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The Swing Carouselby Stig Nygaard on Flickr

This ride is powered by a generator which is run by gas. The gas contains potential energy which is turned into kinetic energy to power the generator. The generator creates electricity that powers the ride. Energy is then transferred to you. Meaning energy is never created from scratch.
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