Today is May 7, 2012. Today while working in class on my 20 percent project I learned that a pinewood derby car that is slower on one ramp may be faster on another. This is because the ramp could have a diffrent percent decline than another ramp which would change the push, and pull of the weight on the car. For example a car with the lead weight up front might be faster on one ramp, but may be the slowest on another.

Today is April 30, 2012. Today I made a list of all of the materials that i had gotten a few days ago that i am going to use for my pinewood derby ramp. I also drew a pretty detailed drawing of the ramp from the side view, and the view if you were right in front of it. I also listed how many i have/need of each material, and all of the approximate dimensions.

Today is April 23, 2012. Today I made a data table, made a list of materials, and the quanity, and how much they are all together. i also made a question that i will answer for the people that i present to with my research. i also decided that i will be using 5g weights, and what i was finding out is where i would place them to make it go the fastest.

Today is April 16, 2012. Today I researched how much weight, and where i could put it to make my pinewood derby car go the fastest. after a while of searching, i found out that putting the max weight in the back of the car will make your car go the fastest, but i will not fully trust this idea until I try it my self. The max weight you can exceed is 5 ounces.

Pinewood Derby Car

Today is March 19, 2012. Today I a have changed  from testing the speed of a hotwheel car when you add weight, to testing the speed of a pinewood derby car when you add weight, and how fast you can make it go by only changing the weight, and were it is on the car. Today I learned that weight most definently affects speed of a pinewood derby car, but depends on where you position the weight on the car.

Today is March 12, 2012. Today i am searching to see if the weight of a hotwheel affects the speed it goes down the track and if it goes faster or slower. The answer was yes because it changes the friction of the car, and the speed would depend on the cars mass.