Quantities, Units & Modelling (Edexcel A-Level Mathematics): Flashcards

Quantity with magnitude only

Quantity with magnitude and direction

Speed, distance, time, mass

Velocity, displacement, force, acceleration

Magnitude

Direction

Place head-to-tail, draw resultant tail to head

Break into components, add, recombine

Combined effect of two or more vectors

Increases or decreases it

No change

$\tan \theta = \frac{\text{opposite}}{\text{adjacent}}$