Physics

Difference between mass and weight

Mass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body. Although it is necessary to measure Wight to find the mass of an object, there is a difference between the two. Mass is defined as a property of a physical body to determine the force of their mutual gravitational attraction towards other bodies. Mass and weight are often used interchangeably in everyday terminology. However, from a slight distinction in the strength of the Earth’s gravitational field in various places, the difference becomes mandatory for measurement.

The mass of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

For example; a person with a mass of 50 kg on Earth will have the same mass on the Moon. On the other hand, the weight of that same person will be 6 times less on the satellite than on the planet due to differences in the force of gravity. The force of gravity on the Moon is 1,622 m / s 2 and on Earth, it is 9.8 m / s 2.

Key Differences

  • Mass refers to the property of an object or matter; Weight is a force
  • The mass never reaches zero; The weight of an object can be measured as zero when there is no gravity.
  • A pan scale, a triple beam scale, an electronic scale or a lever scale is needed to measure the mass; Weight can be measured with a spring scale
  • Mass is a scalar quantity, while weight is a vector quantity.
  • The mass remains the same everywhere; Weight varies as location changes
  • Mass remains the same in all locations, while the weight of an object can rise or fall according to changes in gravity.
  • Mass can be referred to in kilogram, gram, and milligram; Weight is only defined in Newton (N)

Mass Vs Weight – Overview

In conceptual terms, ‘Mass’ speaks of the inherent characteristics of an object, while ‘Weight’, on the other hand, determines the resistance of an object to differentiate itself from its impulsive way of falling freely, which can be under the influence of the field. gravitational near. In a macroscopic term, mass is bound to matter even though the matter is not, an idea so justly explained as mass.

Mass is a property of matter and the mass of an object remains the same. Weight, on the other hand, depends on the effect of gravity and there are variations as the location changes. The mass of an object cannot fall to zero. There are rises and falls of weight with greater or lesser severity.

With magnitude, mass is a scalar quantity while weight comes with magnitude and is a vector quantity, which is directed towards the pivot of the Earth. An ordinary balance may be required to measure the mass of an entity, while the Spring Balance is necessary to measure the weight.

There are ups and downs of weight with greater or lesser gravity. With the magnitude, mass is a scalar quantity while weight comes with magnitude and is a vector quantity, which is directed towards the pivot of the Earth. An ordinary balance may be required to measure the mass of an entity, while the Spring Balance is necessary to measure the weight. There are rises and falls of weight with greater or lesser severity.

With magnitude, mass is a scalar quantity while weight comes with magnitude and is a vector quantity, which is directed towards the pivot of the Earth. An ordinary balance may be required to measure the mass of an entity, while the Spring Balance is necessary to measure the weight. while the Spring Balance is necessary to measure the weight. There are rises and falls of weight with greater or lesser severity.

With magnitude, mass is a scalar quantity while weight comes with magnitude and is a vector quantity, which is directed towards the pivot of the Earth. An ordinary balance may be required to measure the mass of an entity, while the Spring Balance is necessary to measure the weight. while the Spring Balance is necessary to measure the weight. There are rises and falls of weight with greater or lesser severity.

With magnitude, mass is a scalar quantity while weight comes with magnitude and is a vector quantity, which is directed towards the pivot of the Earth. An ordinary balance may be required to measure the mass of an entity, while the Spring Balance is necessary to measure the weight.

Difference between mass and weight in Tabular Form

MassWeight
DefinitionDefined as the quantity of an object, a variety of incoherent particles that are considered to make up a whole body.It is a measure of the gravitational force that acts on an object and depends on the gravity of that particular place.
Scalar or VectorIt is a scalar quantity.It is a vector quantity having magnitude.
ValueIts value is constant.Its value varies by position.
InstrumentElectronic scale or lever scale.It can be measured with a Spring Balance.
Measures in Unit of measurement: kilogram (Kg) and gram (g).Unit of measure: Newton (N).
Limitnever goes to zeroCan be zero
Intrinsic quantity.Extrinsic quantity.
SumProperty of an object or matter.Force

What is the Mass?

Mass is defined as the quantity of an object, a variety of incoherent particles that are considered to make up a whole body. Mass plays a key role in astronaut-related activities and experiments. The mass of an object stays the same all the time. It corresponds to the general notion of how bulky an object is. It is the inherent property of an object. As defined by Sir Isaac Newton’s Laws of Motion, his coined formula will define the term very clearly: F = ma, an object with a mass, m, of one kilogram will accelerate, a, to one meter per second per second when comes under the pressure of the force, F, of an object.

Mass is the amount of matter that an object has. It is a quantitative measure of a body’s resistance to acceleration. We can see it as the resistance of a crockery on the table when the tablecloth is pulled out.

Regardless of where the body is, the mass will always be the same, that is, it is an intrinsic quantity of matter.

Mass is an extensive property of matter , it depends on the quantity and size of the system under study. This means that if an object of mass equal 1 kg, we remove 0.1 kg, and the mass will not be equal in the original object.

How mass is measured?

Mass is normally measured by means of a balance, making a comparison with a known standard. In the International System of Units (SI), mass is expressed in kilogram (kg). Since May 20, 2019, the kilogram is defined in terms of Planck’s constant h , a fundamental constant of quantum physics that is universal:

This new measurement of the kilogram replaces the old definition of the kilogram, based on the prototype of the international kilogram , a cylinder of platinum and iridium that was kept in custody at the International Bureau of Weights and Measures in Sèvres, France in 1889.

What is the weight?

Weight is a force and varies as the situation changes. Weight is a measure of the gravitational force acting on an object and depends on the gravity of that particular location. It is often measured with a unit of force. Having a magnitude y is directed towards the pivot point of the Earth, Weight is a vector quantity of any object. When an object is released from gravity, as in space, its weight can become zero.

Weight is the gravitational force exerted by the Earth or any other celestial body on an object, which is equal to the product of the object’s mass and the value of the local gravitational acceleration:

P=m.g

The value of the acceleration constant on Earth is 9.8 m / s 2 . By the formula it can be interpreted that the weight is proportional to the mass of the object.

Weight is a vector quantity since it has intensity, direction and sense. As such, weight is a measurement resulting from the action that Earth’s gravity exerts on a body, and thus, weight is a variable value.

How is weight measured?

The instrument used to determine weight is the dynamometer or spring scale. This consists of a protected coil spring that measures the force applied to the end of a pointer.

In the International System of Units (SI), the unit of weight is expressed in Newton (N), which is equal to:

Conclution

Mass and Weight are the two most commonly used terms in Physics that have been forming the basis of the subject. They are different from each other, actually opposite and therefore it becomes much more important for people to have a better understanding of how to use them. Hopefully, this article will be of great help in completing that task.

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