Energy can change from one form to another

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Presentation transcript:

Energy can change from one form to another ENERGY CHANGES Energy can change from one form to another

Law of Conservation of Energy Energy can not be created or destroyed. Energy is converted from one form to another

There are 7 different forms of energy:

Mechanical Energy of objects in motion (potential and kinetic) Ex: Swinging a hammer Potential energy: Stored energy Kinetic Energy: Energy in motion

Which has more potential energy? Why?

Which has more potential energy?

How can we increase Potential Energy You can increase potential energy by increasing mass or height of the object.

Chemical Energy released as an object is chemically changed Ex: Digesting food Burning wood

Heat (Thermal) Energy that flows from hotter objects to colder objects Ex: Heating water on a stove

Atomic (Nuclear) Energy released from nuclear reactions splitting atoms Ex: Radioactivity

Light (Radiant) Energy that travels in waves producing the spectrum of colors Ex: Sun, light bulb

Electrical Energy from the flow of the electrons in atoms Ex: Any appliance that “plugs in”

Sound Energy that travels as air molecules vibrate Ex: Talking

“M C H A L E S” M : Mechanical C : Chemical H : Heat A : Atomic L : Light E : Electrical S : Sound

Look at the picture below and describe what type of energy is being converted from and to.

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