give two points of diffrence : force - weight
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Force: Any push or pull is force.
weight : It is the gravitational force exerted by the earth on any body.
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Explanation:
Mass
- Mass is simply the measure of the amount of matter in a body.
- Mass is denoted by “M”
- Mass is always constant for a body and there are several formulas to calculate mass.
- One way to calculate mass is:
- Mass = volume × density
- Mass is a base quantity
- Mass only has magnitude and so, it is a scalar quantity
- The SI unit of mass is Kilogram (Kg).
- Mass does not depend upon gravity and is constant everywhere.
- Mass can never be zero.
- Mass can be easily measured using any ordinary balance like beam balance, lever balance, pan balance, etc.
weight
- Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity.
- Weight is denoted by “W”.
- Weight is the measure of the gravitational force acting on a body.
- Weight can be calculated from the following formula:
- Weight = mass × acceleration due to gravity
- Weight is dependent on gravity and so, it varies from place to place.
- Weight can be zero where there is no gravity (like space).
- Weight can be measured by a spring balance or by using its formula.
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