Explain the properties of weight in detail note?
Explain the properties of weight in detail note?
Weight is the product of mass
multiplied by acceleration acting on that mass. Usually, it's an object's
mass multiplied by acceleration due to gravity. On Earth, mass and weight
have the same value and units. However, weight has a magnitude, like mass, plus
a direction.
The weight of an object is the force of gravity
on the object and may be defined as the mass times the acceleration of gravity,
w = mg. Since the weight is a force, its SI unit is
the newton. Density is mass/volume.
It is the measure of the force of gravity acting on a body.
The formula for weight is given:
w = mg
As weight is a force its SI unit is also the same as that of
force, the SI unit of weight is
Newton (N). Looking at the expression of weight we see that it depends on mass
and acceleration due to gravity, the mass may not change but the
acceleration due to gravity does change from place to place. To understand this
concept let’s take this example,
The shape of the earth is not completely spherical, but an oblate
spheroid, therefore a person standing at the equator is far away from the
center of the earth than a person standing at the north pole, as acceleration
due to gravity is proportional to the inverse of the square of the distance
between two objects, a person standing at the north pole would experience more
weight as he is closer to the center of the earth than a person standing at the
equator.
The material properties are size,
shape, the density of the particles, and their intrinsic mechanical properties (Young's
modulus, yield stress, fracture toughness, etc.
Weight depends on
the effect of gravity. Weight increases or decreases with higher or lower
gravity.
Weight can be zero
if no gravity acts upon an object, as in space.
Weight varies
according to location.
Weight is a vector
quantity. It has magnitude and is directed toward the center of the Earth
or other gravity well.
Weight is measured
using a spring balance.
Weight often is
measured in newtons, a unit of force.
No comments