Lab Report Essay Example

Lab Report Essay Example Lab Report Essay Lab Report Essay Therefore, a compound pendulum Is a endured consisting of an actual object allowed to rotate freely around a horizontal axis Consider an extended body of mass [pick]with a hole drilled though it. Suppose that the body is suspended from a fixed peg, which passes through the hole, such that it is free to swing from side to side, as shown in Figure 1. This setup is known as a compound pendulum. I [pick] I Figure 1: A The types of bodies that are being used In our experiment was Round concord bar, Square concord bar and trapezium plate. The mall Idea that been applied In this experiment was the theory of Moment of Inertia. Background 2 by Muhammad Wide AH-Jeffrey Abraham The experiment title is on compound pendulum. We call a rigid body suspended and free to swing about an axis is a compound pendulum. A compound pendulum behaves like a simple pendulum with effective length, L. The experiment is done to find centre of mass of experiments specimen. There are three type of specimens used in this experiment. They are Trapezium bar, Round concord bar and Square concord bar. Before the experiment Is done, we are given a complete briefing by Mr.. Mood Zachary Johan, the lecturer for this subject on how we supposed to do and submitted ten report Tater ten erelong, we are eave Into our own groups to 00 ten experiment. The dimension of all specimens is given in this experiment. They are sticker on wall inside the lab. But, we decided to measure all the dimension of the specimens manually in order to get more accurate value of our own. At first, our group is doing the experiment on Round concord bar specimen. Other apparatus has been assembled properly, which includes protractor to measure the angle of 1 50 from y-axis (vertical-axis). This angle is the starting point before the round concord bar is released to swing freely for 10 times. Total swinging time in second is measured by using a stopwatch provided. Next, the experiment is done on Square concord bar and Trapezium bar respectively. We record all the data from this experiment in the lab sheet provided by the lecturer. After we finished the experiment, all the group members co-operating to rearrange all the apparatus back to it normal position. Consider an extended body of mass [pick]with a hole drilled though it. Suppose that the body is suspended from a fixed peg, which passes through the hole, such that it is free to swing from side to side, as shown in figure below: [pick] Figure above shows a setup of compound pendulum. Background 3 by Mood Faith Bin Mood Koori A compound pendulum is a rigid body swinging in a vertical plane about any horizontal axis passing through the body. Pendulums have many practical applications Including timekeeping and measuring gravitational field strength. The simple pendulum is treated in many elementary physics texts but is an idealization which does not include the mass of the arm which supports the swinging bob. The experiment is done to find centre of mass of experiments specimen. There are three type of specimens used in this experiment. They are Trapezium bar, Round condor bar and Square condor bar. In order to see if this simple theory will allow accurate analysis of real pendulums, we carried out an experimental investigation of a compound Pendulum, focusing on the dependence of T on l, where T is the period for small oscillations of the pendulum when the distance between the centre of gravity and the Axis of rotation is l. In the schematic representation of a pendulum shown in the illustration, O represents the axis and C the center of mass. The line CO makes an instantaneous angle B with the vertical. In rotary motion of any rigid body about a fixed axis, the angular acceleration is equal to the torque about the axis divided by the moment of inertia I about the axis. If m represents the mass of the pendulum, the force of can De consoler EAI as ten welling MGM acting at ten center AT mass c Schematic diagram of a pendulum. O represents the axis, C is the center of mass, and P the center of oscillation. Background 4 by Mohammad Hafiz Bin Mohammad Argali A body which rotates about an axis through its centre of mass will have a moment of inertia given by mega where k is called the radius of gyration of that body for that axis. The radius of gyration is the point in a rotating body at which all the mass appears to be concentrated. If another axis through the centre of mass is chosen then the radius of Wharton will be different for the different axis of rotation.