Page 672 - SUBSEC October 2017_Neat

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2. Table 2 represents the data obtained from a Young’s Modulus experiment.

TABLE 2: VALUES OF FORCE AND EXTENSION

Force (F) /N 1.9 6.08 9.12 9.88 11.59 14.06

Extension(e)/m 0.01 0.032 0.048 0.052 0.061 0.074 DO NOT WRITE IN THIS AREA

The original length of the wire used in the experiment was 1.85 m and the diameter of the wire
was 2.5 mm.

The Young’s Modulus, E, of the wire is given by the equation

E = F/A
e/L

where F is the force on the wire, A is the cross sectional area of the wire, e is the extension
and L is the original length of the wire.

(a) On the grid provided on page 9, plot a graph of force versus extension. DO NOT WRITE IN THIS AREA
[7 marks]

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