What measures the quantity of matter in an object?
The quantity of matter in an object is its mass. If you then know what the object is made from you can find out (approximately) how many atoms or molecules it has (measured in mol).
mass measures the quantity of matter in a object . we can know more about it from the law of inertia In relation to physics, mass is a property which determines the body's resistance to being accelerated by a force, and the strength of its mutual gravitational attraction with other bodies. The SI unit of mass is the kilogram (kg). The amount of matter in an object is measured as its mass. With mass you…
MASS, in physics,is the quantity of matter in a body regardless of its volume or of any forces acting on it. The term should not be confused with weight. OR can be said as the property which causes the object to have inertia. The mass of an object refers to the amount of matter that is contained by the object
Mass measures the amount of matter in an object. So long as the object itself doesn't change, its mass doesn't change. Weight measures the strength of gravitational attraction that one object experiences from another object. That's why you would weigh different amounts on the Earth, Moon, Jupiter, etc. Each exerts a different gravitational force on you, even though your body contains the same amount of matter.