What is Mass?

mass lottery keno: The quantity of substance a thing contains is generally referred to as its mass, which is a fundamental attribute of matter. It is an inherent quality that does not change depending on where an object is. The “quantity of matter” an item possesses can be conceived of as its mass, which is expressed in kilograms (kg). It can be explained simply as the total number of atoms and molecules that make up a thing.

What is Weight?

On the other side, weight is the force a celestial body, such the Earth, exerts on an object through gravity. It is influenced by the object’s mass and the gravitational field’s strength. Newtons (N) are a standard unit of weight measurement, and weight fluctuates with respect to an object’s position inside the gravitational field.

Understanding the Difference:

The main difference between mass and weight is that weight measures the force of gravity acting on an item, whereas mass measures the amount of matter. Weight varies according to how strong the gravitational field is, whereas mass is constant everywhere it is.

Take an astronaut in space as an example to show the contrast between the two. Because mass is a measurement of the volume of the astronaut’s body, it would not change whether the astronaut was on Earth or in space. But compared to the weight felt on Earth’s surface, the astronaut would weigh very differently in space, where the gravitational pull is much weaker.

Key Points of Distinction:

  1. Mass is an intrinsic property and remains constant, while weight depends on the gravitational force and varies with location.
  2. Mass is measured in kilograms, while weight is measured in Newtons.
  3. Mass refers to the amount of matter in an object, while weight refers to the force exerted on an object due to gravity.


In conclusion, grasping the fundamental ideas of physics requires a comprehension of the distinction between mass and weight. Weight is the force that gravity applies to an object, whereas mass is a measurement of how much matter is there in that object. Remember that weight varies according to the strength of the gravitational force, whereas mass is constant. By recognising this difference, we may better understand how objects behave in varied gravitational situations and appreciate how these ideas are used in a variety of scientific applications.

What is mass?

A: Mass is the quantity of matter in an object, measured in kilograms (kg).

Q: What is weight?

A: Weight is the force exerted on an object due to gravity, measured in Newtons (N).