Moments Flashcards
1
Q
Is a moment the same as a force?
A
no
2
Q
What is the pivot point?
A
The centre of rotation
3
Q
What is a moment?
A
A turning effect, can be clockwise (+) or anti-clockwise (-)
4
Q
What is the equation for moment?
A
Moment (Nm) = Force (N) x Distance (m)
5
Q
What is a lever?
A
A simple machine with a fulcrum and a ridge bar - makes work easier
6
Q
What do you do if the force is not perpendicular to the lever?
A
You use the component of the force that is in the perpendicular direction
7
Q
What is the centre of mass?
A
distribution of mass is the same in all directions
“a point through which a force will not cause rotation
8
Q
What is a couple?
A
two forces that are equal, anti-parallel, do not pass through the same point
