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# Experiment To Show The Effect&amp;#146;s Of Length Of A Pendulum To The Frequency Of Oscillation

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Introduction

Experiment To Show The Effect's Of Length Of A Pendulum To The Frequency Of Oscillation Aim: Investigating how the length of a pendulum affects the frequency of oscillation. Background Knowledge: * The frequency of a wave is the number of waves generated per second. Frequency is measured in Hertz (Hz) The equation used to calculate frequency is: Frequency = Length Period (T) * The period of a wave is the time taken for one complete oscillation or wave. The equation used to calculate the period is: Period (T) ...read more.

Middle

to calculate the period in seconds. * We carried out a short experiment that showed that the height from the table and the weight are not variables. Variables: * The length of the pendulum (this is our controlled variable) * The material the pendulum is made from (we will keep this a constant and use string through out the whole experiment Predictions: If the length of the pendulum increases the period will increase therefore the frequency will decrease (see equation for calculating frequency/period in background knowledge). ...read more.

Conclusion

Divide results by 90 to find the average period for one oscillation Safety: * Wear goggles * Clamp to Table Results: Conclusion: As I said in my predictions, if the length of the pendulum increases the period will increase therefore the frequency will decrease. If the length of the pendulum decreases the period will decrease therefore the frequency will increase. I will see can I use my results to determine how long the pendulum of a clock must be for it to oscillate every second. T (Period) = 2 ????????Length Gravity Therefore when the period =1 and gravity = 10 1 L ??????????2 ?? 10 Therefore Therefore So the length of a pendulum would need to be 25.33cm ...read more.

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