K323 / 2027

Chapter 2

Kinematics

Kinematics describes how objects move.

Learn to calculate average speed and acceleration, interpret motion graphs and describe free fall.

Displacement-time and velocity-time graphs, including changes of direction. For K323 (2027) / 6091 (2026).

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  1. Distance, speed and velocity

    Distance, displacement, speed, velocity and average speed.

  2. Acceleration and slowing down

    Equal changes in velocity, units and non-uniform acceleration.

  3. Displacement-time graphs

    Read velocity from the gradient and recognise changing direction.

  4. Velocity-time graphs

    Read acceleration from gradient and displacement from signed area.

  5. Free fall

    Use the free-fall model and determine acceleration from light-gate readings with stated measurement conditions.

  6. Plotting motion graphs

    Plot readings, calculate gradients and explain the motion.