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→Key Stage 4
: '''Scale diagrams''' use a 'scale' to show how the units of the [[vector]] are represented by a single unit of length (cm or mm). For example 100N = 1cm, so an arrow of 5cm represents a [[force]] of 500N.
: '''Scale diagrams''' can be used to add [[force]]s, [[displacement]]s, [[velocity|velocities]] or [[acceleration]]s.
: A '''scale diagram''' can be used to find the [[Resultant Force|resultant] [[force]] on an [[object]] by drawing rather than calculation.
===Examples===
{| class="wikitable"