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In physics, mass (from Greek μᾶζα "barley cake, lump (of dough)"), more specifically inertial mass, can be defined as a quantitative measure of an object's resistance to acceleration. In addition to this, gravitational mass can be described as a measure of magnitude of the gravitational force which is
- exerted by an object (active gravitational mass), or
- experienced by an object (passive gravitational force)
when interacting with a second object. The SI unit of mass is the kilogram (kg).
In everyday usage, mass is often referred to as "weight", the units of which are often taken to be kilograms (for instance, a person's weight may be stated as 75 kg). In scientific use, however, the term "weight" refers to adifferent, yet related, property of matter. Weight is the gravitational force acting on a given body-which differs depending on the gravitational pull of the opposing body (e.g. a person's weight on Earth vs on the Moon) - while mass is an intrinsic property of that body that never changes. In other words, an object's weight depends on its environment, while its mass does not. On the surface of the Earth, an object with a mass of 50 kilograms weighs 491 Newtons; on the surface of the Moon, the same object still has a mass of 50 kilograms but weighs only 81.5 Newtons. Restated in mathematical terms, on the surface of the Earth, the weight w of an object is related to its mass m by w = mg, where g=9.80665 m s-2 is the Earth's gravitational field.
What else can I help you with?
How is mass found?
Everything has mass.
How is the mass of an object found?
It's found by comparing standard mass units
Where is the mass found in an atom found?
Most of the mass of an atom is found in the nucleus which contains the protons and neutrons.
Where is the mass at the center of the Earth found?
The mass at the center of the Earth is found at the Earth's core.
What is meant by a mass found in the abdomen area?
A mass generally refers to a tumor which has been found in the stomach cavity.
What does it mean to know the mass of an object?
it means that you found the mass of an object.
Density if found by dividing what two things?
Density is found by dividing the mass of an object by its volume.
Density is calculated by dividing the mass of an object?
density is found by dividing mass by volume.................................
What is the mass of an atom found by?
The mass of an atom is primarily determined by the combined masses of its protons, neutrons, and electrons. Protons and neutrons contribute most of the mass since electrons have negligible mass. The exact mass of an atom can be found by adding up the masses of its protons, neutrons, and electrons.
The relative atomic mass of an atom can be found by comparing the mass of the atom to the mass of?
The Hydrogen atom. Beware, Hydrogen has an atomic mass based on one proton, as it doesn't have a neutron. So Helium has a mass of four times Hydrogen.
Found by dividing volume into mass?
Density is found by dividing an object's mass by its volume. It is a measure of how much matter is packed into a certain volume. The formula for density is mass divided by volume.
Where is the mass to a chemical reaction found?
The mass in a chemical reaction is found in the reactants, which are the substances that interact with each other to form products. Mass is conserved in a chemical reaction, so the total mass of the reactants will be equal to the total mass of the products after the reaction is complete.
