Dynamic Flashcards
1
Q
Recall! Is force a scalar or vector quantity.
A
Vector
2
Q
Definition of force
A
A force is a push or pull that one object acts on another.
3
Q
Formula for force
A
Fr=ma or Fapp- f=ma
4
Q
One Newton is defined as
A
The force which produces an acceleration of 1m/s^2 when it is applied to a mass of 1kg
5
Q
Newton’s first law
A
An object will remain at rest and an object in motion will continue in motion at constant speed in a straight line in the absence of a resultant curve action on it
6
Q
Define friction
A
Friction is a force that resists the relative motion of objects that are in contact with each other.
7
Q
2 factors affecting frictional force of 2 surfaces that are in contact with each other
A
- Nature of the surfaces in contact (rough/smooth)
- Force pressing the surfaces together
Independent of:
Surface area of contact
