"ut omnes discant quod erat demonstrandum"

Mon, Dec-9 Relish
Tue, Dec-10 Jedi Trial 3.1
Wed, Dec-11 Parallel Forces
Thu, Dec-12 Parallel Forces
Fri, Dec-13 Inquiries
Sat, Dec-14
Sun, Dec-15
Mon, Dec-16 Inquiries
Tue, Dec-17 Boom Chain
86%
LED BOARD 2020 2019
1.1 Measurement 87
1.2 Math Foundations 75
1.3 Vector Addition 90
2.1 Uniform Acceleration 80
2.2 Graphing Motion 82
2.3 Newton's Laws 79
3.1 Force Body Diagrams 74
3.2 Parallel Forces 0
4.1 Projectile Motion 0
4.2 Circular Motion 0
4.3 Rotational Motion 0
5.1 Work Eff./Power 0
5.2 Energy Conservation 0
5.3 Momentum 0
6.1 Wave Mechanics 0
7.1 Sound Characteristics 0
7.2 Sound Intensity 0
7.3 Doppler Effect 0
7.4 Strings & Tubes 0
8.1 Photoelectric Effect 0
9.1 Fluid Dynamics 0
Current Class Leader: 2019 +2

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Inquiry: Centripetal Force

Purpose: To validate the centripetal force equation.

Procedure:

The first black marking on the string is the 20 cm mark. To find the linear velocity you will have to multiply the angular velocity by the radius. The stoppers are numbered.

#3 (0.011 kg), #4 (0.014 kg),
#6 (0.021 kg), #7 (0.028 kg)

  • Experiment 1: Constant radius (0.4 m). Constant mass (#3). Change force (0.25 N, 0.49 N, 0.74 N, 0.98 N). Plot V2 versus F and determine % error of slope.

  • Experiment 2: Constant radius (0.4 m). Constant force (0.98 N). Change mass (#3, #4, #6, #7). Plot V2 versus m-1 and determine % error of slope.

  • Experiment 3: Constant force (0.98 N). Constant mass (#4). Change radius (0.20 m, 0.30 m, 0.40 m, 0.50 m). Plot V2 versus radius and determine % error of slope.

Inquiry Questions:

  1. Insert all graphs and percent error calculations into your notebook.

  2. A 1.00 kg mass is swung around in a 1.00 m radius circle at 4.00 rev/s. What is the magnitude of the force causing the mass to move in a circle?