Mass and Weight - Definition, Relation, FAQs

Edited By Vishal kumar | Updated on Sep 24, 2024 12:50 PM IST

What is Mass in physics? What is the meaning of mass(mass meaning)?

Mass definition physics or meaning of mass: The Mass is a fundamental element of any physical body.
Everything has a story within them and the scale of the story is size.
The total mass of the system is considered to be permanent. This means that hardship is not always affected by gravity, no matter where it is, the object or the person in it.
Mass has a large size that is usually measured in kilograms and grams. Therefore, it is the quantity of the scale.
We are on earth and we are measuring things on earth with the gravitational force of the earth.
If your weight is 70 kg then you have 70 kg and the scale would be 70kg or 154 lbs.

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Mass and Weight - Definition, Relation, FAQs

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Definition of Mass

Mass is defined as the measure of matter within the body.

Let’s understand the concept of plural by understanding Newton’s second law.

. The force, 'F' is applied to the body given by,

F = m. a

Here, size is a measure of resistance and speed when energy is used in the body.

Therefore, the larger the size of the body, the smaller the change produced by the applied energy.

Mass Definition

Mass is called the amount of material contained in the body.

For example, the human body has bones, muscles, tissues, RBC, WBC. When combined, they form a body weight.

A person or thing can have weight on the moon due to the lack of gravity while maintaining the same mass in all areas without considering its location.

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What is weight in physics?

Basically, weight is a number that has its weight. It is described as the force that always operates on objects in the vicinity of the earth's surface. In simple terms, it is the force when the body is pulled toward the ground. Therefore, weight is a measure of the weight of an object.

The relationship between Mass and weight

Weight is usually defined as the gravitational force that the body is attracted to on Earth or even another celestial body, and it is equal to the product of the mass of the given object, and the gravity given,

NCERT Physics Notes:

W = F = mg

The above formula always applies even if the object is not fast. This means that the object is subject to a free fall and there is no external force other than the force of gravity acting on it.

Also read :

Here,

W is body weight
F = external power
m = body mass
g = acceleration due to gravity

Here, g is a measure of the strength of the gravitational field.

Mass and weight unit

SI unit of mass=Kg

SI unit of weight is Newton

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Frequently Asked Questions (FAQs)

1. Can Mass be created?

Mass cannot and should not be destroyed or created. However, it can even be changed from shape to every other shape.

For example, the quantity of reactants in chemical reactions is same and equal to the magnitude of the given products produced in that way.

2. How Does Volume Affect Mass?

No result.

When the volume increases, the weight remains constant.

For example, If I have weights weighing three gms. The atoms inside this steel (metal) are tightly bound to each other and usually the volume (extend) of every atom is only two inches. Now when I heat this metal, the volume of each atom increases to 3 cubic centimeters while the size does not change i.e., 3 gms.

3. Do Photons Have Masses?

Photons are traditionally said to be massless. Photons are the smallest measure of light, and no, they don't have mass. Light is composed of photons, which have no mass, so therefore light has no mass and cannot weigh anything.

4. What is a Mass?

A measure of the amount of matter contained in or constituting a physical body. Mass is the amount of matter or substance that makes up an object. It is measured in units called kilograms,