Circular Motion Lab - Essay Example

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Defining the problem and selecting variables Problem: How does a change in the length of the radius affect the velocity of the stopper? Research: Circular motion can be expressed in terms of ...........

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Circular Motion Lab

Defining the problem and selecting variables

Problem: How does a change in the length of the radius affect the velocity of the stopper?

Research:

Circular motion can be expressed in terms of formulas as it directly links to Newton?s 2nd law, f=ma.

Fc  = m*a

This relates to circular motion as in circular  motion:

v2

Ac   =r

Because f= m*a We can say that:

v2

Fc     = mr

V = rev / s ? 2nr

T ( period) =1 / ƒ

Frequency = number of revolutions per  second

Variables

Independent  variable(s) (manipulated):

  • Radius

Dependent  variable(s) (measured):

  • Velocity

Controlled variable(s) (constant):

  • Human Error
  • Friction
  • Air resistance
  • Technology

Aspect 2 − Controlling  variables

The variables were controlled in the following ways: Independent:

  • Radius- during the Experiment that we conducted our independent variable that we controlled was the radius. We controlled the radius length which affected the rev/s during our lab and based on that we gathered our data.

Controlled:

  • Human Error- controlling human error played a major role in our lab. This was because the timer tried to reduce
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Circular Motion Lab
Defining the problem and selecting variables Problem: How does a change in the length of the radius affect the velocity of the stopper? Research: Circular motion can be expressed in terms of formulas as it directly links to Newton?s 2nd law, f=ma. Fc  = m*a This relates to circular motion as in circular  motion: v2 Ac  ...
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