L09 intro - L09: Measuring the Acceleration due to gravity...

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Unformatted text preview: L09: Measuring the Acceleration due to gravity with a Simple Pendulum Goal: Measure the acceleration due to gravity to 3 significant figures by using the relationship between the length and period of a simple pendulum Theory Use the equation T=2pi*(L/g)^(0.5), to find gravity, where T is period, L is string length, and g is the acceleration due to gravity of the simple pendulum. We can measure values of L and T to find g. T=2pi*(L/g)^(0.5) g=(2pi)^2/(T^2/L) By graphing the period squared, T^2, over L, the string length, I can find the slope and multiply it by the constant (2pi)^2 to determine g, the acceleration due to gravity. Apparatus String Steel ball Stopwatch Stand measuring tape Method I attached a pendulum to a stand. My pendulum consisted of a piece of string attached to a steel ball. I measured the length of the simple pendulum and recorded the value in a table. I made sure that I included the steel ball as well. Next I pulled back the pendulum less than 10 degrees from the stand and let it go. I let the pendulum well....
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L09 intro - L09: Measuring the Acceleration due to gravity...

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