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CAIE IGCSE Physics Average Values for Small Measurements

Practise measuring repeated small lengths or oscillations, averaging repeated readings and dividing by the number of repeats to reduce percentage uncertainty.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • divide a stack height or wound-string length by the counted coins or turns to find one small length
  • time many complete oscillations from one reference direction and divide by the cycle count
  • average repeated total times before dividing by oscillations, retaining appropriate units and precision

1.1.3—An average value for a small distance question 1

[Maximum number: 3]

A pendulum swings with a time period of approximately one second.
Describe how to use a stop-watch to determine the time period of the pendulum.

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