Energy

– The dictionary definition of energy is the strength and vitality required for sustained physical or mental activity. Which you can find out more information on the energy group page.

– However an easy way of defining energy is saying that it causes things to happen around us. During the day, the sun gives out light and heat energy. At night, street lamps use electrical energy to light our way. Or when a car drives by, it is being powered by gasoline, a type of stored energy. Even the food we eat contains energy. We use that energy to work and play.

What is energy?

Potential and kinetic energy

– Stored energy is called potential energy. – Moving energy is called kinetic energy.– For example when you put the pencil at the edge of the

desk and push it off to the floor. The moving pencil uses kinetic energy.

– Now, pick up the pencil and put it back on the desk. You used your own energy to lift and move the pencil. Moving it higher than the floor adds energy to it. As it rests on the desk, the pencil has potential energy. The higher it is, the further it could fall. That means the pencil has more potential energy.

– Energy can be found in a number of different forms. It can be chemical energy, electrical energy, heat (thermal energy), light (radiant energy), mechanical energy, and nuclear energy. And below is a video on the information just discussed.

Forms of energy!

An interesting part of an article on energy!

BlackLight's physics-defying promise: Cheap power from water•2008-07-02, CNN Money•Imagine being able to convert water into a boundless source of cheap energy. That's what BlackLight Power, a 25-employee firm in Cranbury, N.J., says it can do. The only problem: Most scientists say that company's technology violates the basic laws of physics. Such skepticism doesn't daunt Dr. Randell Mills, a Harvard-trained physician and founder of BlackLight, who recently claimed that he has created a working fuel cell using the world's most pervasive element: the hydrogen found in water. Mills says he has a market-ready product: a fuel cell that produces a chemical reaction to alter hydrogen atoms. The fuel cell releases heat that turns water into steam, which drives electric turbines. The working models in his lab generate 50 kilowatts of electricity - enough to power six or seven houses. But these, Mills says, can be scaled [up] to drive a large, electric power plant. The inventor claims this electricity will cost less than 2 cents per kilowatt-hour, which compares to a national average of 8.9 cents. Mills developed the patented cocktail that enables the reaction - a solid fuel made of hydrogen and a sodium hydride catalyst - only a year ago. (He recently posted instructions on the company's Web site, blacklightpower.com). Now that the device is ready for commercialization, he says, BlackLight is negotiating with several utilities and architecture and engineering firms. The business, Mills says, has attracted $60 million in funding from wealthy individuals, investment firms ... and it is no longer seeking money. BlackLight's board of directors reads like a Who's Who of finance and energy leaders.

In case you want to learn more on the article

• http://blacklightpower.com/index.shtml

• T h e w e b s i te a b o v e t e l l s y o u e v e r y t h i n g y o u n e e d t o k n o w a b o u t b l a c k l i g ht e n e r g y a n d t h e d i ff e r e n t w ay t h e y c a n u s e i t . A n d o n t h e s i d e i s a i n fo r m a ti o n a l v i d e o .

Works cited

• http://www.energyquest.ca.gov/story/chapter01.html

• You tube• To read more about the article on the last

slide is the link below.• http://money.cnn.com/2008/07/01/

smallbusiness/blacklight.fsb/index.htm