5. Turning Effects of Forces

Question 1

Define moment

Answer 1

It’s the turning effect of a force

Question 2

Moment formula

Answer 2

Moment= Force x distance

Question 3

Principle of moment

Answer 3

Sum of clockwise moment about the pivot is equal to the sum of anti-clockwise moment about the same pivot

Question 4

Define equilibrium

Answer 4

1. Weight on both side of the pivot must be the same
2. Force on both side of pivot must equal but go in the oppo direction
3. No resultant force is produced

Question 5

Define centre of gravity

Answer 5

1. an imaginary point where the entire weight of an object acts