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7 marksScientific Method

CSEC Physics · May/June 2013 · Paper 2 · Question 1(a)

A student performed an experiment to investigate how the length of a spring varies with the load applied to its end. Table 1 shows the results.

Plot, on page 3, a graph of length (L) on the vertical axis versus Load (F). Start each axis at zero.

This question uses a figure or table from the paper — you'll see it when you practise.

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Other parts of this question

  1. 1(b)Determine the gradient of the graph.[4 marks]
  2. 1(c)What information about the spring does the gradient of the graph provide?[1 mark]
  3. 1(d)(i)Use the graph to find the original length of the spring.[2 marks]
  4. 1(d)(ii)Use the gradient to calculate the extension of the spring if a 0.7 kg mass hangs freely from the end of the spring. Hence calculate the length of the spring…[6 marks]
  5. 1(d)(iii)If the spring was stretched beyond its elastic limit how would this affect the shape of the graph?[1 mark]
  6. 1(e)(i)How would you identify the region where proportionality exists?[2 marks]
  7. 1(e)(ii)Classify EACH quantity shown in Table 2, as a scalar or vector by inserting a tick (✔) in the appropriate column.[2 marks]

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