Moments Flashcards
(9 cards)
1
Q
What is a moment?
A
The turning effect produced by a force.
2
Q
What units do moments have?
A
Nm
3
Q
How do you calculate a moment about a point?
A
Force x perpendicular distance to the line of action of the force
4
Q
What is meant by a body being in equilibrium?
A
The net force and the net moment acting on the body are both zero.
5
Q
What is the principle of moments?
A
For an object in rotational equilibrium the sum of the clockwise moments about any point is equal to the sum of anticlockwise moments about that point.
6
Q
What is a couple?
A
A pair of equal and opposite forces acting on an object with different lines of action.
7
Q
How do you calculate the moment of a couple?
A
Force x perpendicular distance between the lines of action of the forces
8
Q
A
9
Q
A
