Tuesday, April 24, 2012

researched questions- Amy

How does a solar powered car work?
A solar powered  car gets it's  energy from sunlight. Solar panels are black, black absorbs sunlight well.  As the solar panels absorbs the sunlight a part of the solar panel called a solar cell coverts the light into electricity to power the car. The electricity that is not used is stored for a cloudy day.

How does a salt water powered car work?

How does a salt water powered work?
saltwater slowly dissolves a magnesium sheet which produces hydrogen ions that migrate to the carbon cathode, creating a electrical current.

What is energy?
 Is the ability to do work- we learned this in class

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