3 Place 100 G Weights example essay topic
468 words
Science Report (Nature of Science) Aim To find out the effect of the thickness of a biscuit on the ability of the biscuit to support a finite amount of weights Apparatus Weights Biscuits Thread Background Information "Biscuits are designed to be strong so that they do not crumble easily". (web) A biscuit consists of flour, oil and other ingredients, which are packed together into a brittle solid. Therefore, biscuits can stand up to a finite amount of weight before it breaks. Hypothesis The thicker a biscuit, the more weights it can support. VariablesIndependento Increment of Thickness Method of applying weight so Type of Biscuit o How the Biscuit / Biscuits are placed Method of Control (Independent Variables) o Increment of Thickness - Regular increment of 1 biscuit thickness o Method of applying the weights - Placing the weights gently onto the biscuits, increasing the weight by 100 g each time, until the crackers break. o Type of Biscuit - Use identical Khong Guan Cheese Cracker so How the Biscuit / Biscuits are placed - The biscuits will be strung tightly together and hung on a hook. (Refer to diagram 1.1) Dependent The number of weights that can be hung on the biscuits Procedure 1) Drill a hole in the middle of the biscuit with a needle. 2) Hang the weight holder on the biscuit.
3) Place 100 g weights one by one, until the biscuit breaks (Refer to diagram 1.1) 4) Repeat the experiment with 2, 3, 4 and 5 biscuits 5) Repeat the experiment 3 times 6) Calculate the average weight required to break the biscuits of different thickness 7) Plot a graph to identify the main trend of this experiment. 8) Formulate a conclusion from the results. Margin of Error As the weights obtained are 100 g weights, they are not precise. Therefore, if a biscuit breaks when a 200 g weight is hung on it, it does not mean that the biscuit breaks at 200 g. It is just an approximate amount. To utilize a spring balance would have caused the results to be more accurate.
Secondly, whenever a new weight is added to the weight holder, the position of the set-up shifts a little. I have attempted to curb this by decreasing the distance between the Table of Results Weight Required to Break Different Thickness of Biscuits Thickness of Biscuit Weight Required to Break the Biscuits (g) First Attempt Second Attempt Third Attempt Average 2 100 100 100 1003 200 300 200 2504 100 400 500 4505 600 500 200 550 Data AnalysisConclusionFrom the above results, I have concluded that my initial hypothesis was right. As stated above, the thicker a biscuit, the more the force required to break it.
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