turning effect of forces (moments)

Question 1

moment

Answer 1

the product of the force F and the perpendicular distance d from the pivot to the line of action of the force

Question 2

principle of moments

Answer 2

when an object is in rotational equilibrium, the sum of clockwise moments about a pivot is equals to the sum of anticlockwise moments about the same pivot

Question 3

centre of gravity

Answer 3

the point through which an object’s whole weight appears to act

Question 4

stability

Answer 4

measure of an object’s ability to return to its original position after it is slightly displaced