No. 691Ages 11 to 14
What is a Force?
Pushes, pulls and newtons: the KS3 starting point, with contact and non-contact forces and quick practice.
No. 692Ages 11 to 14
Drawing Force Diagrams
Free body diagrams done properly: arrows for every force, labelled in newtons, with a worked resultant.
No. 693Ages 11 to 14
Balanced and Unbalanced Forces
Resultant forces explained: when motion stays steady, when it changes, and how to work out the difference.
No. 694Ages 11 to 14
Friction
The force that opposes motion: where it helps, where it hinders, and how to reduce it, with a labelled diagram.
No. 695Ages 11 to 14
Gravity and Weight
Mass versus weight, the formula W = m g, and gravity across the solar system, with worked examples.
No. 696Ages 11 to 14
Measuring Speed
Speed = distance / time in metres per second, read straight off a real distance-time graph.
No. 697Ages 11 to 14
Springs and Hooke's Law
Extension proportional to force, the limit of proportionality, F = k e, with a graph, a data table and practice.
No. 698Ages 11 to 14
Levers and Moments
The simple machine that multiplies force: moment = force x distance, and balancing a seesaw with the maths shown.
No. 699Ages 11 to 14
Pressure
Force spread over area, measured in pascals, with the sharp-point rule and clear worked examples.
Type or write inNo. 700Ages 11 to 14
Forces Quiz
Ten write-in questions covering the whole pack, with a full answer key for easy marking.