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# How does the height of a ramp effect the stopping distance of the model travelling down it

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Introduction

How does the height of a ramp effect the stopping distance of the model travelling down it Introduction- I will carry out an experiment to answer this question. I will do this by making a ramp with an adjustable height and rolling a toy car down it to see how long it travels before it stops. I will then work out the work done by using this equation - Force (n) x distance (m) = work done (mgh) I predict that the greater the slope of the ramp the longer the model will take to stop. ...read more.

Middle

this means the more energy the car has, the longer it takes to stop, so the higher the ramp, the further the stopping distance. I will test the stopping distance on 5 different height ramps ranging from 0.37m to 0.77m, and I will repeat the experiment 5 times as to eliminate ant anomalous results. Fair test- To make sure the experiment is a fair test I will keep all non-variable aspects of the experiment the same (Ramp, stand, surface, toy car, ruler and where on the ramp the model starts) the only thing I will change is the ramp height. ...read more.

Conclusion

repeat steps 2-4 5 times 6. change the ramp height to be 0.1m higher 7. repeat until all 5 heights have been tested 5 times Safety- The toy cars can be unsafe if left lying around, so always keep an eye on them and put them safe when not in use. Results- Ramp hight (m) Mass (kg) Breaking force (n) Breaking distance (m) Average breaking distance (m) 1.26 0.94 0.37 0.49 0.1813 0.9 0.82 0.75 0.25 0.42 1.67 0.47 0.49 0.2303 1.4 1.242 1.52 1.2 1.24 2.4 0.57 0.49 0.2793 1.26 1.502 1.3 1.31 2.21 2.37 0.67 0.49 0.3283 2.85 2.28 2.4 1.57 1.87 2.7 0.77 0.49 0.3773 3.2 2.498 2.4 2.32 Conclusion- The results show that my prediction was right, the higher the ramp the greater the stopping distance. ...read more.

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