what does mass mean
http://dictionary.reference.com/
I think its the amount of space i a object.
No, it's the amount of material in an object.
ohh
thanks
"Mass" is a fundamental property of matter that measures the amount of substance in an object or system. It is a measure of the total number of atoms, ions, or molecules in a given entity.
To understand the meaning of mass, let's break it down step by step:
1. Define mass: Mass is a measure of the amount of matter in an object or system. It is often confused with weight, which is the force exerted on an object due to gravity. Mass, however, remains constant regardless of its location, while weight can vary depending on the gravitational pull at different locations.
2. Units of mass: The standard unit of mass in the International System of Units (SI) is the kilogram (kg). Other common units include grams (g) and metric tons (t). These units can be converted using conversion factors.
3. Measuring mass: Mass can be measured using various instruments, such as a balance or scale. These devices compare an unknown mass to a known mass (such as standard weights) to determine the mass of an object.
4. Conservation of mass: Mass is a conserved quantity, meaning it cannot be created or destroyed in a closed system. This principle is known as the Law of Conservation of Mass, which is a fundamental concept in physics and chemistry.
In summary, mass is a measure of the amount of substance present in an object or system, and it is independent of its location or gravitational effects. It is measured using units like kilograms or grams, and it cannot be created or destroyed, according to the Law of Conservation of Mass.