Compound pendulum experiment lab report

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Then we suspended the pendulum on a support. After this we slightly displaced the pendulum from its mean position through a small angle and released it so that it could vibrate. We measured the time of 10 vibrations and distance from center of gravity to the hole i-e the axis about which the pendulum vibrated. After this we shifted to second hole and repeated the same procedure. Then we calculated the time period T for each hole. Then we plotted a graph between T and G taking T on y axis and L on x axis.

Compound pendulum experiment lab report

Vibration Any motion that repeats itself after an interval of time is called vibration or oscillation. The swinging of a pendulum and the motion of a plucked string are typical examples of vibration. The mass of string is negligible in comparison to the bob. Under these conditions, the mass of the bob may be regarded as concentrated at its centre of gravity, and the length of the pendulum is the distance of this point from the axis of suspension. A rigid body mounted upon a horizontal axis so as to vibrate under the force of gravity is a compound pendulum. Compound pendulum When the dimensions of the suspended body are not negligible in comparison with the distance from the axis of suspension to the centre of gravity, the pendulum is called a compound, or physical, pendulum. Time period T for a compound pendulum is given by:. Measure the length of given bar pendulum metal rod with holes. Find out the center of gravity or mid-point of metal rod. From the center of gravity, there are nine holes on each side left and right. Arrange the clamp stand to hold metal rod. Take two knife-edges and fix it to the first two holes from Side A and Side B.

Searching to encourage and increase the desire of students to seek a vocation in the study of engineering and science, we wanted to implement and validate experimentally and numerically, the study of the movement compound pendulum experiment lab report a mechanical oscillator using, in this case, a physical pendulum, formed by a bar and a disk. This was calculated using the mean of the values of g from the last column and the corresponding standard deviation. Personal Growth Documents.

A pendulum exhibits simple harmonic motion SHM , which allowed us to measure the gravitational constant by measuring the period of the pendulum. We plan to measure the period of one oscillation by measuring the time to it takes the pendulum to go through 20 oscillations and dividing that by We constructed the pendulum by attaching a inextensible string to a stand on one end and to a mass on the other end. The mass, string and stand were attached together with knots. The uncertainty is given by half of the smallest division of the ruler that we used.

By taking values of time period T for one oscillation, we had to plot a distance D to time period T graph. Taking values from the graphs and known formulas, we were able to find the value of gravitational acceleration g and the error in our value. We were also able to calculate the theoretical radius of gyration k and moment of inertia I using the stated derivation of this report. We made sure to take multiple reading whereby we were able to obtain an average reading for all desired values. Now students were to acquaint themselves with the theory of compound pendulum. The practical was aimed at finding the experimental value of gravitational acceleration g and then finding error in our obtained value.

Compound pendulum experiment lab report

A pendulum exhibits simple harmonic motion SHM , which allowed us to measure the gravitational constant by measuring the period of the pendulum. We plan to measure the period of one oscillation by measuring the time to it takes the pendulum to go through 20 oscillations and dividing that by We constructed the pendulum by attaching a inextensible string to a stand on one end and to a mass on the other end. The mass, string and stand were attached together with knots. The uncertainty is given by half of the smallest division of the ruler that we used. We repeated this measurement five times. We transcribed the measurements from the cell-phone into a Jupyter Notebook. This was calculated using the mean of the values of g from the last column and the corresponding standard deviation. This is consistent with the fact that our measured periods are systematically higher.

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Yun Kiam Yap. Errors due to oscillations in the conventional pendulum experiment were avoided because only one impact was allowed for every set of readings. In this experiment I will measure the acceleration due to gravity on earth by measuring the time period of a pendulum. Academic Documents. Leslie Hutchins. This is almost considerable amount of error. G unchanged. Procedure The experiment was conducted in a laboratory indoors. Unit 3 Unit 3. Lab 09 Lab Repeat the process to note the time of 50 vibrations for each hole on both sides leaving one or two holes near G. Carousel Next. Journal of Pediatric Surgery Experience with a nonlaparoscopic, transumbilical, intracavitary pyloromyotomy.

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Integumentary Sensations Integumentary Sensations. Circular Measures Circular Measures. Time period T for a compound pendulum is given by:. Additionally, a protractor could be taped to the top of the pendulum stand, with the ruler taped to the protractor. Compound Pendulum 2 Compound Pendulum 2. This study was carried out with low-cost materials and easy access, in addition to the great social impact that I had against the acceptance and assessment by the students with whom this work was applied. This paper work presents the experimental value of theoretical acceleration due to gravity g which was obtained in five 5 different locations and their average was also obtained as 9. Lab 1 - Pendulum Lab 1 - Pendulum. Phy 11 Phy A measurement of g with a ring pendulum. IOSR Journals. Report this Document.