Candidates should check to ascertain that all pages are printed as indicated

# Candidates should check to ascertain that all pages

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4 printed pages. Candidates should check to ascertain that all pages are printed as indicated and that no questions are missing. 1. You are provided with the following apparatus: © RACH – 2011 Form Four Physics 232/3 1

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A metre rule One stopwatch One stand, clamp and boss One spring Two pieces of wood A beam balance or electronic balance (to be shared) One mass labeled M Proceed as follows: a) Hang the spring vertically by clamping one end as shown in figure 1. (the small pieces of wood to clamp the spring) b) Measure the length, Lo, of the unloaded spring, and record below. Lo=_________________________________mm ( ½ mk) c) Hang the mass M given from the lower end of the spring. Measure the length,L 1 of the loaded spring. L 1 =_________________________________mm ( ½ mk) d) Find the value of L 1 -L o in centimeters. L= L 1 - L o cm 1mrk e) Using the balance given find the mass of the object M. Mass of M=___________g (1mk) f) Hang the mass M from the lower end of the spring. Displace it by a small vertical distance and release so that the spring makes vertical oscillations. Measure and record, time for the number of oscillations given in the table below Oscillations, N 5 7 10 13 15 18 20 Time in seconds, t (s) ( N+10t ) (s) 10 ( N+10t ) 2 (s 2 ) 10 (7mks) Complete the table above g) On the grid provided plot a graph of ( N+10t ) 2 (y-axis) against N. (5mks) © RACH – 2011 Form Four Physics 232/3 2 L 0 Fig.1
10 h)(i) Determine the slope S, of the graph at N= 16 (3mks) (ii)Find the constant k, given that (2mks) K= MS 13L 2. You are provided with the following.

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