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This project involves testing a catapult by using a rubber band to catapult a mass using various forces. Our aim is to choose and investigate variables of our choice and its effects using a simple catapult.
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Catapult investigations Planning: Aim - This project involves testing a catapult by using a rubber band to catapult a mass using various forces. Our aim is to choose and investigate variables of our choice and its effects using a simple catapult. Preliminary method - 1. Using a tripod, a rubber band and a long sheet of paper set a catapult. 2. Test it and observe which variables you will keep constant and which you will change. 3. Record the preliminary results into a table. 4. Write up your predicted outcomes. Diagram for the preliminary experiment - Bird's eye view of the experiment Preliminary work results - Extension (cm) Distance travelled (cm) 1 0 2 1.2 3 3.5 4 6.5 5 11.9 6 19.5 7 28.2 8 40.9 9 64.8 10 71.6 11 80 12 103.2 13 122.1 14 139.9 Preliminary graph - Commenting on my preliminary work - From the preliminary results and the graph I can already see a pattern forming. The pattern is that the more force I apply the rubber band (therefore moving back more on the scale), the length that the mass travels also increases. This means that...
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