A student is investigating how the force applied to two different springs affects their extension.  She plots an extension-force graph for spring A (with extension on the y-axis and force on the x-axis) and obtains a straight line.  On the same axes, she plots a second straight line using the data which she obtained for spring B.  The gradient (slope) of the line for spring B is lower than that for spring A.  What does this tell us about the spring constants of these springs?The spring constant of spring A is equal to that of spring BThe spring constant of spring A is lower than that of spring BNothingThe spring constant of spring A is greater than that of spring B

What does the gradient of the line on the graph represent?2 marksThe spring constantThe length of the springThe force appliedThe mass of the spring

A student investigating the extension of a spring used the results obtained to plot the graph. The gradient G of the graph line is numerically equal to a constant k for the spring. Determine k. (record your answer to 3 s.f.)*2 points

To find the force constant of a helical spring by plotting a graph between load andextension

A student carried out an investigation to determine the spring constant of a spring. Table 1 gives the data obtained by the student. Table 1 Force in N Extension in cm 0 0.0 2 3.5 4 8.0 6 12.5 8 16.0 10 20.0 0 2 . 1 Describe a method the student could have used to obtain the data given in Table 1. Your answer should include any cause of inaccuracy in the data. Your answer may include a labelled diagram. [6 marks] loading

0 2 . 4 Write down the equation that links extension, force and spring constant.