4. In contact force ,the body and the
source that applies force come in
contact with each other
In non contact force ,they do not
come in direct contact.
5.
6.
7. An internal force is a force
acted upon by an object to
force another objects
movement internally
An external force is a force
exerted on an object based on
the objects position and force
applied on the object which
causes opposites forces
change in motion
8. Balanced forces are the
forces acting on an object
that are equal in size and
opposite direction
canceling
each other out.
Unbalanced force are
forces that are not equal.
9. Any body continues to be in
a state of rest or of uniform
motion in a straight line
until an un balanced
external force is applied on
it.
10.
11.
12.
13. A body in motion has the
tendency to continue in that
state This is inertia of motion
A body at rest has the
tendency to
continue in that state. This is
inertia of rest
14. A fan continues to rotate for some
more time even after it is switched
off.
An athlete runs some distance
before taking a long jump
A cricketer runs some distance
before throwing the ball
15. Dust particles are
detached from a
carpet When it is
beaten with a stick
A vehicle that tries
to pull an other
vehicle tends to stop
at the beginning.