Analysis Of Simple Pendulum

Introduction
Gravity is a phenomenon that is encountered every day, why don’t objects fly? Why the apple fell on Newton’s head not flew into space? Since Galileo’s famous experiment (Throwing two different masses from the top of a tower and their arrival at earth at the same time), it was proven that the acceleration due to gravity is constant, and since then, many experiments were carried out to identify the value of the constant acceleration due to gravity “g”. [1]
The aim of this experiment is to measure the constant “g” by using simple pendulum, by measuring the length of the wire and the period of the oscillation of the bob and using mechanics to get the value of “g”, in this experiment the length of the wire is changed and the period

The apparatus required
The apparatus used in this experiment is a simple pendulum, which consists of: A wire with a controllable length by losing or tying it to the top of the pendulum. A bob of constant mass (note that the mass will not affect our calculations, as the period of the oscillation is independent of the mass) A stand that will hold the wire and the bob at a constant level. A measuring tape to measure the length of the wire. A stopwatch to calculate the period of the oscillation. Methodology The independent variable in this experiment is the length of the wire, for each set of trials, the length of the wire is determined and measured using the measuring tape, ranging from 10 cm to 60 cm (less than 10 cm the pendulum will not oscillate correctly and more than 60 cm there will be ties in the wire which will affect the measurement as it will change the length of the wire during the experiment which should be constant), and the length is measured 3 times (to ensure that it was measured

There was an outlier at (0.4, 1.57), no there was no ignorance for it, as it was corrected by the best fit that happened to the curve. The answer is appropriate, as the accepted value of “g” from “Oxford, A Dictionary of Mechanical Engineering” is 9.81 m/s^2, with error = (9.81-9.47)/9.81*100=3.5% which is accepted.[3] There was a problem in ensuring that the initial angle is less than 10 degrees at the beginning, also the wire sometimes was wobbling, and to overcome this, the bob attached to the wire was held stationary for a while and was left gently to oscillate. Sources of error where : The calculations are based on small angles approximation, and by using computer and the exact formula, we may get more accurate result – human error in measuring the length and the period, as the response of human is not that fast – the wind or any air current that may disturb the setup of the