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CBSE Class 9 Answered

Differentiate between-(1) mass and weight (2) Inertia and buoyancy
Asked by dude.yuv | 11 Jun, 2015, 04:52: PM
answered-by-expert Expert Answer
Mass and Weight:
Mass of a body is the quantity of matter contained in it. Mass is denoted using m or M. The mass of a substance is constant and does not change form place to place.

Weight is the measure of the amount of force acting on a mass due to the acceleration due to gravity. Weight usually is denoted by W. The weight of a substance changes form place to place.
For example, if you were to travel to the Moon your weight would change because the pull of gravity is weaker there than on Earth but, your mass would stay the same because you are still made up of the same amount of matter.
 
Inertia and Buoyancy:
Inertia is the property of a body due to which it resists a change in its state of rest or of uniform motion.
The tendency of a liquid to exert an upward force on an object placed in it, is called buoyancy.
Answered by Yashvanti Jain | 13 Dec, 2017, 07:57: PM

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