moments

Question 1

what is the moment

Answer 1

the turning effect of a force is called the moment

Question 2

what is the relationship between moments, turning force and perpendicular distance from the force to the pivot

Answer 2

moment = turning force x perpendicular distance from the force to the pivot.  
m = f x d

Question 3

if an object is not turning, what does this mean about the moments

Answer 3

if an object is not turning, the total clockwise moment must be exactly balanced by the total anticlockwise moment about any pivot.

Question 4

what can simple levers be used as

Answer 4

simple levers can be used as force multipliers

Question 5

what happens if the line of action of the weight of an object lies outside the base of the object (and give an example)

Answer 5

if the line of action of the weight of an object lies outside the base of the object there will be a resultant moment and the body will topple. (examples include vehicles and simple balancing toys)