Energy Transformations & Conservation

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Presentation transcript:

Energy Transformations & Conservation

Energy Transformations & Conservation http://www.youtube.com/watch?v=iotBJt2MaQM Niagara Falls Mechanical energy is transformed into electrical energy!

Energy Transformations A change from one form of energy to another form of energy. Many forms of energy can be transformed into other forms.

Single transformations A toaster transforms electrical energy into thermal energy What type of energy transformation is happening here?

Single transformations What type of energy transformation is happening here?

Multiple transformations Mechanical energy Thermal energy Electromagnetic energy

Transformations between potential and kinetic energy Niagara Falls

Energy transformation in juggling Explain how energy is transformed when juggling

Wile E. Coyote vs. Roadrunner https://www.youtube.com/watch?v=Jnj8mc04r9E https://www.youtube.com/watch?v=i6e-KrNCe_E

Energy transformation in a pole vault What kind of energy lifts a pole-vaulter over the bar?

Law of Conservation of Energy Songs https://www.youtube.com/watch?v=_uLSFigtLKg https://www.youtube.com/watch?v=k60jGJfV8oU

Law of Conservation of Energy Energy cannot be created or destroyed, but it can be change from one form to another. No energy is destroyed in the process of energy transformation.

Energy and friction If you set a spinning top in motion, will the top spin forever? What happens to the energy? Is energy destroyed? Energy is transformed to thermal energy due to friction.

Energy and friction Mechanical energy is transformed into thermal energy Friction= force one surface exerts on another when two surfaces rub together fricción Rub your hands together. What happens?