The difference between mass, density and weight please.

Question

The difference between mass, density and weight please.

In: 11

Answer 1

Mass is fundamental to physical objects. Density is how close that stuff is packed. Weight is how gravity plays with the stuff we call mass.

Some atoms pack different amount of stuff, mostly protons and neutrons. Atom’s electron fields make some take up more space. More stuff in less space=dense, like lead. Spreading stuff out over greater space is less dense, like Styrofoam.

Cool experiment: sink Styrofoam ball 10 meters under water & it will be half the size, but still the same amount of stuff. The pressure made it more dense than at sea level by 1 additional atmosphere of pressure!