Physics M2

# Physics M2 - John Salek-Raham PHY 151 Lab M2 Free Fall In...

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John Salek-Raham PHY 151 Lab M2 9/25/07 Free Fall : In this Laboratory Experiment, drops of different heights were made using a steel ball of 8mm in diameter. The time was recorded using a timing device. The data was recorded, and is shown here. The Average Time was then calculated for each drop. The standard deviation was also calculated for each drop. Time for a ball (8 mm) to fall a distance of 1.503 meters : Average t = 0.562s Trial Time (sec) Deviation (10^-3 s) (Delta t) (Delta t)^2, 10^-6 s^2) 1 .560 2 4 2 .563 3 9 3 .560 0 0 4 .568 8 64 5 .560 0 0 Average Deviation = (Delta t1) + (Delta t2) + …(Delta t5) 5 = 0.003 s Standard Deviation = ((Delta t1)^2 + (Delta t2)^2 + …(Delta t5)^2 )^1/2 4 = 0.004 s Time for a ball (8 mm)to fall a distance of 1.392 meters: Average t = 0.539s Trial Time (sec) Deviation (10^-3 sec) (Delta t) (Delta t)^2 , 10^-6 s^2 1 .534 5 25 2 .534 5 25 3 .557 18 324 4 .534 5 25 5 .535 4 16

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Average Deviation = (Delta t1) + (Delta t2) + …(Delta t5) 5 = 0.007 s Standard Deviation = ((Delta t1)^2 + (Delta t2)^2 + …(Delta t5)^2 )^1/2 4 = 0.010 s Time for a ball (8mm) to fall a distance of 1.249 meters: Average t = 0.506s Trial Time (sec) Deviation (10^-3 sec) (Delta t) (Delta t)^2 , 10^-6 s^2 1 0.505 1 1 2 0.505 0 0 3 0.508 2 4 4 0.504 1 1 5 0.506 1 1 Average Deviation = (Delta t1) + (Delta t2) + …(Delta t5) 5 = 0.001 s Standard Deviation = ((Delta t1)^2 + (Delta t2)^2 + …(Delta t5)^2 )^1/2 4 = 0.001 s Time for a ball (8mm) to fall a distance of 1.075 meters: Average t = 0.471 s Trial Time (sec) Deviation (10^-3 sec) (Delta t) (Delta t)^2 , 10^-6 s^2 1 0.469 2 4 2 0.469 2 4 3 0.469 2 4 4 0.479 10 100 5 0.469 2 4
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Physics M2 - John Salek-Raham PHY 151 Lab M2 Free Fall In...

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