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Relative Motion

CONCEPTUAL
ScienceForces & Motion|Ages 11—12|ID: mt_-OndzpVsrv

Explain relative motion — how the apparent speed and direction of an object depends on the observer's own motion — using everyday examples such as trains and cars passing

Mastery Evidence

  • Explains why a train moving at the same speed in the same direction as another appears stationary to passengers on that train
  • Calculates relative speed when two objects move towards or away from each other
  • Explains why the frame of reference matters when describing motion

Assessment Prompt

“If [child] was on a train and another train passed going the same direction but faster, could they explain why it looks slow even if it's actually travelling at high speed?”

Curriculum Standards1 alignment

KS3.Sci.Phys.MotionAndForces.3The national curriculum in England
Relative Motion

relative motion: trains and cars passing one another

Science · KS3

Prerequisites1

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