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Physics Practicals

Module 4 - UM

Uncertainty associated with repeated measurements that do not give the same values. It includes an Activity of measuring the time it takes a piece of paper to fall to the floor, and another Activity of measuring the ratio of the circumference to the radius of a number of metal hoops. The module introduces:

  • Scattered or dispersed measurements

  • Bell-shaped curves, also called Gaussian distributions or normal distributions
  • Gaussian probability distributions.
  • The uncertainty in the estimated standard deviation
  • Propagation of uncertainties
  • The uncertainty in the mean

A 10 minute PowerPoint review of bell-shaped curves that is useful after the students have read the Module but before they begin work on it. Primarily intended for instructors.

  Uncertainty in Physical Measurements Module 4 Student Guide
  Uncertainties Introduction Student Guide
  Uncertainty Module4 - Equipment List Equipment List and Setup