Sunday, July 19, 2009

Types of Energy!!!

Mechanical, Electromagnetic, Electrical,
Chemical and Thermal

What is Mechanical Energy?

o Energy due to an object’s motion (kinetic) or position (potential).

o The bowling ball has mechanical energy. When the ball strikes the pins, mechanical energy is transferred to the pins!

What is Electromagnetic Energy?

• Light energy
o Includes energy from gamma rays, xrays, ultraviolet rays, visible light, infrared rays, microwave and radio bands

What is Electrical Energy?

• Energy caused by the movement of electrons
o Easily transported through power lines and converted into other forms of energy.

What is Chemical Energy?

• Energy that is available for release from chemical reactions.
o The chemical bonds in a matchstick store energy that is transformed into thermal energy when the match is struck.

What is Thermal Energy?
• Heat energy
o The heat energy of an object determines how active its atoms are.

o A hot object is one whose atoms and molecules are excited and show rapid movement.
o A cooler object's molecules and atoms will show less movement.

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