Determine the force of gravity

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    レポート理工学重力実験物理考察

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    理工学重力

    資料紹介

    This experiment’s purpose is to determine the force of gravity using a simple pendulum. A simple pendulum consists of a heavy weight called the bob, supported from a fixed point about which the bob is free to swing by a string of insignificant mass. To calculate the force of gravity, first, measure the L, which is the length of the pendulum. Then by using a simple pendulum, find out the period T, which is a time taken for one complete vibration. Using these values, calculate the force of gravity using the formula below.

    In conclusion, we got a value for gravitational acceleration and it was quite close to an expected value which is 9.8ms^-1. We learned (or reminded) several things in this lab. First, the mass of the pendulum doesn’t matter to the pendulum swing (time for 1 vibration) because of Newton’s law. All object fall in a same rate. Second, the height we release pendulum bob also does nothing with pendulum swing (time for 1 vibration). There is only one valuable (unless we change the system of experiment) we can adjust and changes the pendulum swing (time for 1 vibration). And that valuable is the length of a string. The longer the pendulum (string), it will take more time to make one complete vibration and in opposite, time for 1 vibration will decrease when we shorten the length of a pendulum.

    資料の原本内容( この資料を購入すると、テキストデータがみえます。 )

    *Determine the force of gravity
    using a pendulum.
    *AIM:
    This experiment's purpose is to determine the force of gravity using a simple pendulum. A simple pendulum consists of a heavy weight called the bob, supported from a fixed point about which the bob is free to swing by a string of insignificant mass. To calculate the force of gravity, first, measure the L, which is the length of the pendulum. Then by using a simple pendulum, find out the period T, which is a time taken for one complete vibr..

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