PASCO PS-2138 Goniometer - Manual (Page 19)

Model No. PS-2138 Experiment Teachers' Notes and Sample Data
19 ®
Experiment Teachers' Notes and Sample Data
Part 1
In this example r = 0.38 m.
1) Arc Angle,
θ = 1.42 rad
2) s = r
θ = (0.38 m) (1.42 rad) = 0.54 m, theoretical
3) s = 0.57 m, actual
4) In this example the theoretical and actual values of s differ by 5%.
Part 2
Students should predict v
T
= r
ω
1) The graphs of Velocity vs. Time and Angular Velocity vs. Time appear
to be directly proportional.