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Natural Sciences · Foundational

Motion

Watch things move and learn to describe them precisely. Read motion from strobe pictures and graphs, discover the equations of constant acceleration, predict where a projectile will land, work out how far a car needs to stop, and see how motion looks from a moving frame.

8 lessons~50 min0/8 complete
Start courseHelpful background: Solving Equations
1

Describing Motion

Where it is, how fast, and how that changes.

  1. Where Is It?Position, distance and displacement
  2. VelocityHow fast, and which way
  3. AccelerationWhen velocity changes
2

Equations of Motion

Constant acceleration, from braking cars to free fall.

  1. The Big ThreeEquations for constant acceleration
  2. Free FallEverything falls the same way
3

Motion in Two Dimensions

Sideways and up-and-down, at the same time.

  1. ProjectilesTwo motions at once
4

Motion in the Real World

Stopping safely and moving relative to others.

  1. Stopping DistancesThinking time plus braking
  2. Relative MotionIt depends who’s watching

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