Mass and weight



Mass:
It is defined as the amount of matter contained in a body. It does not vary its physical state with change in position.  Mass of a body can be measured directly using weighing machines or lever balance. Units of mass is “Kgs”
Ex: Mass of a boy is 58kgs

1.

 2.


Weight:
It is the gravitational pulling force exerted by earth on a body (mass)
As the distance of the body varies from the center of earth, its weight also varies.
Units of weight is “Newtons”.
Ex: weight of a mass(body) on earth varies from weight on moon.

W=mxg
m=mass of a body (kg)
g= acceleration of gravity (9.8 m/s2)
 
Ex: 
Let mass of a boy is 58kgs
 W= 58*9.81 =568.98N
then his weight is 568.98N





#difference between mass and weight
#difference between weight and mass