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3 cards from this section. Quick, good the night before a test.
What is Stokes Law?
Look for the relationship between drag force and sphere movement.
List the components of the drag force equation.
Recall the formula we discussed in class.
What does Stokes Law describe?
Think about what type of object is moving.
True or False: Terminal velocity occurs when the forces acting on an object are balanced.
Consider what happens to an object's motion when upward forces equal downward forces.
A sphere with a radius of 0.02 m is dropped into glycerin at 20°C. The viscosity of glycerin is 1.5 Pa.s. Calculate the terminal velocity.
Ensure you know the densities involved; look them up or assume common values.
A student conducts an experiment measuring the fall speed of different sized spheres in a viscous fluid. Discuss how their results could vary and what parameters influence this.
Think about how real-life materials can change the weight and resistance.
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