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Table of Contents

Motion notes

Summary

For uniform motion, divide distance by elapsed time.1

Data and formula

Distance (m) Time (s) Speed (m/s)
20 4 5

v=dt=204=5 v = \frac{d}{t} = \frac{20}{4} = 5

The unit is metres per second, not metres.2


Area notes

Summary

For a triangle, use the base and its perpendicular height.3

Data and formula

Base (cm) Height (cm) Area (cm²)
6 4 12

A=bh2=6×42=12 A = \frac{bh}{2} = \frac{6 \times 4}{2} = 12

The area is expressed in square centimetres, not centimetres.4


  1. These numbers are self-authored teaching examples, not experimental measurements.↩︎

  2. Speed uses distance divided by time.↩︎

  3. These numbers are self-authored teaching examples, not experimental measurements.↩︎

  4. Area uses square units.↩︎