Moments (Edexcel GCSE Physics): Flashcards

Fixed point about which object rotates

Turning effect of a force

$M = Fd$ (force × perpendicular distance)

Newton-metres (Nm)

Increase force or increase perpendicular distance

Decrease force or decrease perpendicular distance

Greater rotational effect

Less rotation

Clockwise and anticlockwise

Total clockwise moment = total anticlockwise moment about a pivot

Sum of anticlockwise moments = sum of clockwise moments

Perpendicular distance from pivot to line of action