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. From this we calculated the value of g using the formula.

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.

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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.

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. It was also aimed at finding the mean radius of gyration k and mean moment of inertia I of the given pendulum. The practical was aimed at giving the students a proper understanding of what gyration is, what the theory behind inertia. Also, during the discussion of the practical, the students were taught how to derive the complex Time period T to gravitational acceleration g relationship for a compound pendulum which has been stated below. The mass of simple pendulum is concentrated in its bob while the mass of a compound pendulum is distributed evenly over its entire body.

Compound pendulum experiment lab report

It seems a mysterious and even a magical force. Magnetism's ability to serve mankind especially lies in its relationship to electricity. That means, magnetism and electricity are so closely related to each other. The concept of this can be applied in many technologies for an effective productivity. The study of this lab revolves around the generation, propagation and reception of mechanical waves and vibrations.

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Procedure The experiment was conducted in a laboratory indoors. The setup consists of a thin copper wire suspending a pendulum metal bob. Materials Required Materials Required. Log in with Facebook Log in with Google. Our experiment went quite well with only 8. After this we slightly displaced the pendulum from its mean position through a small angle and released it so that it could vibrate. Keywords: Didactic, local acceleration Additionally, a protractor could be taped to the top of the pendulum stand, with the ruler taped to the protractor. Then we suspended the pendulum on a support. Physics Lab 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

The point S is called the centre of oscillation. Measure the length of given bar pendulum metal rod with holes. Sergio Torres. Practical Work Practical Work. Now, balance the knife edge at wedge of clamp or stand. Multi Layer Insulation Literature: 1. After Defense After Defense. Pesach Steinberg. G unchanged. 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. Displace the pendulum slightly not more than 5 and release it to vibrate.