FORCE AND PRESSURE
Date: 22.06.2016 C.W
1.
Force is a push or pull on an object.
2.
Forces applied on an object in the same direction add to one another.
3.
If the two forces act in
the opposite directions on an object, the net force acting on it is the difference between the two
forces.
4.
A force can change the state of Motion.
5.
The state of motion of an object is described by its speed and
the direction of motion. The state of rest or a state of motion.
6.
Force can change the shape of an object.
7.
A force
_ may make an object move
from rest.
_ may change the speed
of an object if it is moving.
_ may change the direction
of motion of an object.
_ may bring about a change
in the shape of an object.
_ may cause some or all of
these effects.
8.
Types of Force
(a)
Contact Force – Muscular force and friction
Non Contact Force –
Magnetic, Electrostatic and Gravitational
