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Physics, 25.11.2020 01:20 samantha636
21. Jenny performs an experiment to measure the acceleration due to gravity (g). The results
are presented in the below: (note: timing procedure was done for 20 oscillations)
Time taken for 20
oscillations t(s)
15.5 20.1 23.7 26.9 29.8 32.4
Length l(m) 0.15 0.25 0.35 0.45 0.55 0.65
Time Period T(s) 0.775
T
2 (s2
) 0.60
a. Complete the table above (8 marks)
b. Plot a graph of T2
against l. (10 marks)
c. Determine the gradient of the graph (5 marks)
d. Given that gradient = 39.4/g, determine the acceleration due to gravity g. (4 marks)
22. Complete the following table of Fundamental Quantities: (10 marks)
Quantity Symbol Unit Symbol Measuring Instrument
Time
m
Ampere
K
Meter ruler
23. Describe a method that could be used to determine if changing angle of displacement
would affect the period of oscillation of a simple pendulum. (12 marks)
(Note: you may use a diagram in this section)
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21. Jenny performs an experiment to measure the acceleration due to gravity (g). The results
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