Moments (AQA A-Level Physics): Flashcards

Turning effect of a force around a pivot point or axis

$\text{Force} \times \text{Perpendicular distance from pivot}$

Newton-metres ($Nm$)

Two equal but opposite coplanar forces along different lines of action

Rotational effect without resultant linear force

$\text{Force} \times \text{Perpendicular distance between forces}$

Sum of clockwise moments = sum of anticlockwise moments

Point where entire mass of an object appears to act

At its geometric centre

Forces acting in the same plane