22 September, 2010

Mass Vs Weight

Mass Vs Weight
The following table will cover a few mass and weight comparison points that will help you understand the mass and weight difference in a glance:
Mass and Weight Comparison

Mass
Weight
Mass is the quantity of matter in a body.
Weight is the force with which a body is attracted towards the center of the earth.
Mass is a scalar quantity.
Weight is a vector quantity.
The mass of an object is constant on Earth and even in space.
The weight of an object can vary from place to place and becomes zero at the center of the earth. It is also zero in places that are far away from earth.
m = F/a is the mass of a moving body.
W = mg, is the weight of a body.
An ordinary weighing balance can help you weigh mass.
Spring balance helps measure the weight of an object.
The unit of mass in the S.I system is Kilogram (kg).
The unit of weight in S.I system is Newton (N)
1. Mass is an intrinsic property of a body.
2. It is independent of any external factor.
1. Weight of an object depends on the mass of an object that is attracting it.
2. Weight is also dependent on the force with which it is attracted. It in turn depends on the distance between the two objects.

Area: Is a quantity expressing the two-dimensional size of a defined part of a surface, typically a region bounded by a closed curve.
Volume: The amount of space occupied by a three-dimensional object or region of space, expressed in cubic units.
Density: Measure of the relative "heaviness" of objects with a constant volume.
Velocity : is the rate of change of position
Acceleration: is the change in velocity over time

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