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Scalectrix Experiment.

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Introduction

What I want to find out I want to find the speed of a Scalectrix car at three different places along a track. While setting the current with a variable resistor. This is to prove that a different current can in increase or decrease the speed of a Scalectrix car. What I think will happen and my physical reason for this I think when the current gets higher the car will get faster. This is because the higher the current the more energy given to the car giving it more kinetic energy. I found from my research I have found from my research nothing about a Scalectrix experiment but I have found some information that will relate to it. The more current it has the faster the car will go. I figured this out by thinking that the higher the amount of electric current the more amount of kinetic energy which is the move movement of objects. My plan My plan is to use a Scalectrix track with a length of ......m in length then measure the speed with a speedometer every 1m while measuring the current so I can compare the current to the speed. ...read more.

Middle

This is the table in which I will record my results Length of Card Current in Amperes Time 1 in ms Time 2 in ms Time 3 in ms Speed 1 Speed 2 Speed 3 Here is a table with the results of my experiment Length of Card 6.50 Current in Amperes Time 1 in ms Time 2 in ms Time 3 in ms Speed 1 Speed 2 Speed 3 0.24 25.14 19.62 20.50 2.59 3.31 3.17 0.24 24.37 19.10 18.82 2.67 3.40 3.45 0.24 22.82 18.18 17.73 2.85 3.58 3.67 0.20 23.40 19.11 18.22 2.78 3.40 3.57 0.20 23.53 18.38 18.06 2.76 3.54 3.60 0.20 23.52 18.43 18.06 2.76 3.53 3.60 0.16 31.47 25.82 26.10 2.07 2.52 2.49 0.16 31.63 24.86 26.44 2.06 2.61 2.46 0.16 30.52 24.50 27.99 2.13 2.65 2.32 0.12 48.48 39.85 42.19 1.34 1.63 1.54 0.12 50.96 42.21 42.91 1.28 1.54 1.51 0.12 53.25 41.94 41.09 1.22 1.55 1.58 In addition I have made the following observations In addition to the first experiment we did we tried the same thing with weights on top of the cars. ...read more.

Conclusion

I think my results are accurate because I think my results are accurate because they agree with my prediction, and the graph was a good reliable shape. Overall I think are reliable because I think my results are reliable because, they coincide with my original prediction, they agree with my research and they make a good graph. I think I have sufficient evidence to support my conclusion because I think I have sufficient evidence because the graphs show an obvious trend. I.e. the higher the current, the faster the time. The higher the current, the higher the speed. To make my results better I could improve the method used as follows To make my results better I could take more readings on one piece of track instead of just three. I could also take them more often for each value of the current. We could also put weights on the car and see what happens. I could obtain further evidence I could obtain further evidence by researching on the Internet and persisting with more experiments. I could extend my enquiry I could extend my enquiry by doing an experiment using a toy petrol engine to see how the speed depended on the setting of the supply throttle. ...read more.

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