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# To find out the effect on speed of a trolley going down a slope

Extracts from this document...

Introduction

Aim      To find out the effect on speed of a trolley

going down a slope

Safety   Use a barrier – so the trolley does not roll

away

Make sure the slope is secure – so it doesn’t

topple over

Cello tape the weights down – so they don’t fall

Off

Goggles are not needed for this experiment

## Diagram

Apparatus  Trolley, slope, books, weights, cello tape,

stopwatch and a metre ruler

Plan       I plan to find a surface suitable for the

experiment and build my slope. At first I will

use 2 books and gradually work my way up to 20

books timing and measuring the distance it

travels. I will then find the size slope

in which the trolley travelled the furthest

...read more.

Middle

gravity will always stay constant.

 Height of slope / cm Distance / cm Time taken / secs 0 0 0 2 111 2.03 4 205.5 5.68 6 272.5 5.97 8 275 5.87 10 423.5 6.78 12 491 6.46 14 519 7.12 16 528 7.16 18 609 7.78 20 649 7.63

On

...read more.

Conclusion

I could make the experiment and results more accurate with more complex apparatus, time it more accurately, use heavier weights (I only used light weights and they did not really make a difference). To extend this work, we could conduct Galileo type experiments, but take them a step further. Perhaps, if we had the access to the right equipment, we could drop weights from different heights in a vacuum (i.e. no air resistance), calculate the speed using light gates and see if it produces theoretically perfect results. We could also try eliminating any other opposing forces, such as friction, by polishing surfaces etc. and noticing if this changes the results.

...read more.

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