Alysha A.

# Physics Help for a Lab

1. Derive an equation for the frequency in terms of the tension, the radius, and the mass by combining your results from graphing. (1 mark)

2. The equation Fc = 4π^2mrf^2 gives the magnitude of the net force causing the acceleration of an object in uniform circular motion.

a. Manipulate the equation to solve for frequency. How does this compare with your results from (2)? (1 mark)

b. What are the most likely causes for any discrepancies? (1 mark)

Data Given:

 Washer’s Mass (kg) Times (s) ± Frequency (Hz) ± 0.05 20.0 ± 0.2 0.5 ± 0.01 0.11 13.6 ± 0.2 0.74 ± 0.01 0.26 8.8 ± 0.2 1.14 ± 0.02 0.35 7.6 ± 0.2 1.32 ± 0.03

 Radius (m) ± Times (s) ± Frequency (Hz) ± 2.0 ± 0.1 20.0 ± 0.2 0.50 ± 0.01 1.8 ± 0.1 18.9 ± 0.2 0.53 ± 0.01 1.0 ± 0.1 14.2 ± 0.2 0.70 ± 0.01 0.5 ± 0.1 10.0 ± 0.2 1.0 ± 0.02

 (Force of Tension) Moving Mass (kg) Times (s) ± Frequency (Hz) ± 0.025 20.0 ± 0.2 0.50 ± 0.01 0.075 34.8 ± 0.2 0.29 ± 0.01 0.095 39.1 ± 0.2 0.26 ± 0.01 0.15 49.3 ± 0.2 0.20 ± 0.004

By:

Alysha A.

Took a long time but I finally got it :) thanks tho!
Report

10/24/20

Scott D.

tutor
Very good! If only all my answers were that easy :D
Report

10/24/20

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