Circular Motion Lab

Purpose:To discover the relationship between the tension force of a string and the period of a mass being swung around in a circle.

Materials:(1) string, (2) rubber stoppers, (3) pen tube, (4) masses ranging from 100g to 500g

Table1: Data collected for the effect of changing mass (and therefore tension) on the period of the circular motion of an object being spun in circles attached to a string. Mass of Force of Force of Trial 1 Trial 2 Trial 3 Average Period Just in Case Column hanging gravity on tension in object hanging string Time for 10 Time for 10 Time for 10 object cycles cycles cycles FT (s) Fg (kg) (N) [+/-0.02] (N) (s) (s) (s) [+/- 0.1] [+/- 0.1] [+/- 0.1] 0.100 0.98 0.98 6.2 6.2 6.0 0.61 0.200 1.96 1.96 4.2 4.2 4.1 0.42 0.300 2.94 2.94 3.6 3.5 3.5 0.35 0.400 3.92 3.92 2.8 3.1 3.1 0.30 0.500 4.90 4.90 2.6 2.6 2.5 0.26Graph: [Comm. - 5 marks] Figure 1: The relationship between the Tension Force of a string vs. the Period of a mass being swung around in a circle Force of tension - 0.329*x + 0.148 R? = 0.995 3.92 A 2.94 1.96 Force of tension FT(N) [E] N 0.98 1 0 6 8 10 12 14 Average period^-2 T(s^-2) Write a paragraph below the graph discussing what the graph is showing. [3 marks] Things to include can be found in the Lab Skills Booklet: . State the equation that the software provides using proper variables . Explain the significance of the coefficient . Comment on what series you chose in Google Sheets and why . Comment on the R2-value and whether or not this is a good equation