P8 Flashcards
1
Q
What is a vector?
A
A vector quantity has to be described with a line and an arrow to show magnitude and direction.
2
Q
What is a scalar?
A
A scalar quantity has no direction but a size.
3
Q
What is a force?
A
A force is a push or a pull that acts on object. Force is measured in Newtons (N).
4
Q
Different types of forces.
A
Non-contact
Contact
5
Q
Calculating moment
A
M=Fxd
6
Q
Gear moment equation
A
M=force x gear radius
7
Q
What is the centre of mass?
A
The centre of mass of an object is the point at which it’s mass can be thought of as being concentrated.
8
Q
Resultant forces
A
When one of two opposing forces is greater than the other.
9
Q
Equilibrium
A
w d = w d
1 1 2 2
