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4 marksDeformation

CSEC Physics · January 2008 · Paper 2 · Question 1(a)

A student investigates the relationship between extension and force for a spring with an original length of 60.0 cm, obtaining results shown in Table 1.

Complete Table 1 by calculating the force, F, and the extension, e, of the spring. [acceleration due to gravity, g = 10 N kg⁻¹]

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Other parts of this question

  1. 1(b)Plot a graph of Extension against Force on the graph paper on page 2.[10 marks]
  2. 1(c)From your graph, calculate the slope, S.[4 marks]
  3. 1(d)The spring constant is related to the slope of the graph as follows: Spring constant = 1/S. Calculate the spring constant.[2 marks]
  4. 1(e)Draw a labelled diagram showing the apparatus as used in this investigation.[5 marks]
  5. 1(f)(i)With the aid of dotted lines, use your graph to determine the force which would cause an extension of 1.8 cm.[2 marks]
  6. 1(f)(ii)With the aid of dotted lines, use your graph to estimate the extension of the spring if a force of 1.3 N is applied.[2 marks]
  7. 1(g)If the student continues to take readings, a point may be reached where proportionality no longer exists. Name this point.[1 mark]

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