Ex﻿

4. Gravitation

Mass & Weight

Mass Weight
1. Mass of a body is defined as the quantity of matter contained in it. Weight of a body is the force with which it is attracted towards the centre of the earth.
W = mg
2. Mass of a body  remains constant and does not change from place to place. Weight of a body changes from place to place. It depends upon the value of g. Weight of a body on another planet will be different.
3. Mass is measured by a pan balance. Weight is measured by a spring balance.
4. Unit of mass is kg. Unit of weight is newton or kg-wt.
5. Mass of a body cannot be zero. Weight of a body can be zero.
Ex. astronauts experience weightlessness in
spaceships.
6. Mass is a scalar quantity. Weight is a vector quantity.

If you want to give information about online courses to other students, then share it with more and more on Facebook, Twitter, Google Plus. The more the shares will be, the more students will benefit. The share buttons are given below for your convenience.
×

NTSE Physics (Class X)

• Electricity
• Magnetic Effect of Curent
• Light Reflection
• Light Refraction
• Human Eye & Colourful World
• Source of Energy
• Motion

NTSE Physics (Class IX)

• Force & laws of motion
• Work and Energy
• Gravitation
• Sound

SHOW CHAPTERS