... the gradient of the line of best fit it will be equal to: 4?2 g We can then work out g, the gravitational field strength. g= 4?2 _ Gradient The graph that will be plotted will be T2 against e (time period2 against extension) and I expect that it will be similar to the following sketch: I predict that the gravitational field strength I calculate will be quite close to the 9.8N/Kg that is taken to be g in the scientific world. I know that there will be errors in my experiment and I will try to minimise them by adding precautions in some steps of my plan. I predict that the value I will get for g will be between 9.6 and 10N/Kg. Plan Apparatus Spring (small silver spring 2.1mm in length) Clamp stand Metre rule (marked in mm) Weights (8 x 50g masses) Weight hook (of mass 50g) Large weights (2 x 1Kg) Safety glasses Elastic band Stopwatch (accurate to 1/100 of a ...

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