This is an occasional series in which I track how big ideas are linked between primary school Science and secondary school Physics. My first attempt is indicated here.
| Pri Sch | Sec Sch |
|---|---|
| A force is a push or pull | + A force is a vector. Has magnitude & direction |
| Friction, elastic spring force, gravitational force, magnetic force | + normal reaction, tension, electric force |
| A force can increase or decrease the speed of a moving object | + Newton’s Laws of Motion (balanced forces, F = ma, action-reaction pairs |
| draw forces acting on a body | + draw a free-body diagram |
| Friction opposes motion | + because of how surface irregularities that catch onto one another, thus causing surfaces to resist motion |