The last activity you were assigned for homework this week was to research how a solar car works. You have seen how the heat of the sun's rays can burn a hole through paper (and in some cases the wooden clip board!). But how does it make a car go? What has to happen before the sun's energy can be used to move a vehicle?
Click the comment button below, and post your ideas based on your research.
Tuesday, January 22, 2008
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A solar car gets energy from the sun. The panel is black because black absorbs the sun the most. A thing called a solar cell turns the light into energy. There are uhhhh a lot of solar cells on the black panels.
A solar car is an electric car that gets its electric power from the sun. Solar energy is collected using solar panels, which are made up of solar cells. Each solar cell is a small electricity-generating device. This is how a solar cell works:
First, the sunlight hits the solar cell. As the light hits the cell, electrons "jump" from one state to another. Electric connectors in the solar cell capture these electrons and use them as electricity to power the car's battery.
Solar cells are able to save energy from light. The solar cell has special material called semiconductors that store the energy.
The energy from the sun is colected by photons in the solar cells witch make up the solar array, which is a solar panel. The energy is turned into electicity, witch travels through power trackers that maximize the amount of energy needed to run the car.
1.Photons in sunlight hit the solar panel and are absorbed by semiconducting materials, such as silicon.
2.Electrons (negatively charged) are knocked loose from their atoms, allowing them to flow through the material to produce electricity. The complementary positive charges that are also created (like bubbles) are called holes and flow in the direction opposite of the electrons in a silicon solar panel.
3.An array of solar panels converts solar energy into a usable amount of direct current (DC) electricity.
An array of solar panels converts solar energy into a usable amount of direct current (DC) electricity.
--graces.
Solar Cells (solar panels) jobs are to convert the suns rays to usable energy: electricity. They take the sun's photos and turn them in to electrons that can be of use. PVs (Photovoltaic) cells are made of special materials called semiconductors. They use this material because it absorbes a lot of energy. This is the site i used to find this information: http://science.howstuffworks.com/solar-cell1.htm
Solar energy is collected through solar panels to help a solar car go. solar energy is made up out of solar cells. Each solar cell is a small electricity generating device. Solar cells begin to work when sunlight hits the solar cell. Then, when the light hits the cell, the electrons that make up the cell change from one state to another. Then the electric connectors in the solar cell capture the electrons and use them as electricity, therefore making the solar car move
Solar cars work by solar cells that are put on the roof of the car. the cells turn the sun's rays into energy instintly.
Solar cars collect energy by having pannels on the back of the cars. It is really cool how they run on just solsr energy.
I have made a solar car it was easy. I don't know if it works because it isn't sunny enough, but it should because the teachers said so. Its really simple with instructions. I did the experament with Mac. it was fun. Not complacated.
The whole car was easy to make except putting the tube on. It was fun because it actully didn't break. The sun meets the solar pannell.the pannell makes the motor work. the motor makes the wheel spin.
the solor cars work by the motor connceted to the alligator things and then it goes to the rubberband and moves the wells then after it moves. then the light makes the solor wells go wrond.
The solar car lab was so much fun! But it was also really challenging. It was hard to fix the wheels on and get it to go but with some help from my dad i did it! The part i liked the most was probably seeing my car go. After all the hard work it made me feel good. I think this lab can be improved by making the axels larger. This would make it SOOO much easier and make it work better. This was an awesome experiment and i hope i can do this again.
EXPPERIMENT: Easy: putting the motor together and on.
Challenging: sharpening the axle and putting on the wheels.
Enjoyed Most: when I saw my car move.
Improved by... more helpers.
--graces.
TODAY WE MADE SOLAR CARS! I think it was really fun! I took the longest to complete my solar car, I think I might have even finnished last, but when I finnished it was probably the fastest. I think it was a fun learning expirience and I learned a lot more about solar cars and solar energy. I can't wait until we build wind mills!
Today we made SOLAR CARS!! It was so much fun. I made mine with Sharie and Rachel Burdorph. Making solar cars was pretty challenging. I had to do quite a bit of adjusting, but in the end, my car worked. It drove strait forward at about a meter a minute. Pretty slow you think, but it was a great acomplishment for me. Me and Rachel took the absoulute longest! We were just starting when everyboy else was finished. My wheel came off and I had to readjust my motor, but my car is sitting on it's shelf, sitting tall and proud, its fancy solar panel shining, and its yellow base glowing. I think that this was one of the best labs that I have ever done! I hope that when we build wind mills, I'll have just as much fun!!!
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