Linearizing data Transitional Reasoning Practice

Physics · Introduction to Physics · Physics · Scientific Investigation

1 Physics practice questions on Linearizing data. Questions that build towards applied reasoning.

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Questions

  1. 1.

    A student investigates how the centripetal force FF acting on a toy car depends on its speed vv while moving in a horizontal circular track of known radius rr. The theoretical relationship between these variables is given by F=mrv2F = \frac{m}{r}v^2, where mm is the mass of the car. To determine the mass of the car using linear regression, which combination of plotted variables and slope analysis should the student use?

    • A) Plot FF on the vertical axis and v2v^2 on the horizontal axis; calculate mass as m=S⋅rm = S \cdot r, where SS is the slope.
    • B) Plot FF on the vertical axis and vv on the horizontal axis; calculate mass as m=S⋅rm = S \cdot r, where SS is the slope.
    • C) Plot FF on the vertical axis and v2v^2 on the horizontal axis; calculate mass as m=Srm = \frac{S}{r}, where SS is the slope.
    • D) Plot v2v^2 on the vertical axis and FF on the horizontal axis; calculate mass as m=S⋅rm = S \cdot r, where SS is the slope.

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