Article archive
09/14/2010 11:01
Today was BACKWARDS DAY!!!!! Backwards day is when we make the car travel in the opposite direction and show how the car isn't going negative numbers. our car traveled -16.5 feet but because you can't travel a negative number it really went 16.5 feet. That explains absolute value. We also tested...
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09/14/2010 10:52
Again, we didn't test the car today due to the whole spring wearing out thing. but we worked on our force diagrams, made a logo for our car, and painted our car too.
<------Here is our painted car
<-------Nicole's force diagram
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09/14/2010 09:49
We did not test the car today due to the fact that the spring is wearing out and we want our car to go at least one lap. Instead, we worked on our force diagrams and our website.
<-----Justine's force diagram of our car going up the bank
We also discussed Scientific Notation. Scientific notation...
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09/09/2010 11:09
We tested our car again today. It went arond nearly 11/2 times, thats 18 feet.
Here is some of the data we collected.
vi= 0.6m/s because the distance, 1.5m, divided by the time, 2.5s, is 0.6m/s
vf= 0.5m/s because the distance, about 5.49m, divided by the time, 10.04s, is about 0.5m/s
a= -0.2m/s2...
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09/08/2010 11:07
Today we tested the car again and it works very well. We figured out the exact angle we need to have the wheels at in order for it to go around the track. It goes around the track 1 1/4 times. My hypothesis on how far the car will go on race day is about 1 lap because the spring is wearing out...
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09/07/2010 11:38
Today we tested the car again. Testing the car relates to Newtons first law, an object in motion stays in motion unless another force acts upon it, because the car would keep moving if there was no friction on the wheels to stop it. We fixed the car so that we wouldnt have to take off the...
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09/03/2010 11:51
9/2/10: Today we fixed the car and it worked for the first half of class but then it broke again :(. We also worked on our experiment again. We figured out that we had a couple flaws in our experiment such as we only tested once for each tire and we didn't have a big enough variety of tires. Over...
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09/01/2010 16:39
Today we are still testing the car. Because the little wheels made the car go faster we are still using those. The car broke though so we are going to get more materials and fix it over the weekend. We continued our experiment today and figured out the big wheels went 3.5m/s and the little wheels...
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09/01/2010 09:49
Today we will begin testing our car for an experiment. The technique we are trying is all big wheels on the car. The results were that the big wheels actually make the car go slower and not as far. We think it may be because the friction on the bigger wheels is more than on the smaller wheels.
-Big...
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08/31/2010 11:48
what we did today we were working on our car to see if it can go on the track on race day. so now we have to see if it will even work so it is pretty tought to do that.it has to do with newton's 3rd law because it has to do with pushing the car froward and the spring is being pushed back
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