Chapter 5 Moments Flashcards
1
Q
Principle of Moment
A
For object that is in equilibrium, the sum of moment in clockwise direction about a pivot equal to the sum of moment in anti-clockwise direction about the same pivot
2
Q
When the pivot is at the centre of gravity, what is the value of moment of the weight
A
ZERO
3
Q
Centre of gravity defines as
A
The point through which its whole weight appears to act for any orientation of the object
4
Q
Defines Stability of an object
A
The ability of an object to return to its original position after an object has been tilted slightly
5
Q
Three types of equilibrium are?
A
Stable
Unstable
Neutral
6
Q
Two ways to increase stability
A
Reduce the centre of gravity to low level
Increase the area of the base to wider area
7
Q
Moment =
A
Perpendicular Distance x Force
