Mass and weight are not the same. These terms may be used interchangeably in ordinary conversation, but physicists converse somewhat differently. We can have a situation which is weightless but we are not able to have a situation where a body has no mass.
Some questions that we might want to consider in this chapter, mass, weight & density:
- How are weight and mass related ?
- What is a gravitational field ?
- How are mass and density related ?