FORCE

Force is a push or pul upon an object resulting from the object’s interaction with another object

Force divided into two groups :

1.     Non Contact Force

a.     gravity

b.     magnetism

c.      electricity

2.     Contact Force

a.     friction

b.     muscle

c.      machine

Effect of Force

Force can change :

a.       the shape

b.      the position

c.       the speed

d.      the direction

e.       the size