
Solve Quadratic Equations by Factorization or Formula

Linear Simultaneous Equation

Equations of Constant Acceleration (5 SUVAT)

Distance  time Graph (Gradient)

Velocity  time Graph (Gradient, Area)

Pythagoras' Theorem

Trigonometry of Rightangled triangles

Sine Rule and Cosine Rule

Given one Trig Ratio, finding others

sine^2 x + con^2 x (trig identity)

tan x = sine x / cos x

Definition of Force, F=ma

Reaction of Force or Normal

Resolution of Forces (Triangle Law of Vectors Addition)

Direction choices are usually Horizontally and Vertically, Parallel and Perpendicular to slope, or Parallel and Perpendicular to direction of motion

Resolving perpendicular to an unknown force means the unknown will not appear in the equation.

When direction of acceleration is unknown, it is normally best to find components of a resultant force and use them to find direction of magnitude of resultant.

Force resolution and Newton Second Law

Limiting Friction and R, mu

Total contact force is the combination of normal contact force and friction

If situation becomes different because a force a force changes or direction of motion switches, the normal contact force may be affected, so the friction may change. It is best to draw a new diagram every time a different situation arises.

Resolve forces in equilibrium and deal with nonequilibrium problems.