You are looking down on the puck. When the puck reaches point B a brief sudden kick is given to the puck. Answer Weight and Mass Weight and mass are often confused. Mass is a measure of inertia, while weight is the force an object feels due to gravitational attraction. The mass of an object is independent of where it is located.
Weight is very much dependent on location.
Answer F. An astronaut far from the Earth shakes a lead brick back and forth. She discovers that the she needs to exert a force that is the same as she would need on Earth. There is some confusion about the different units for weight and mass. This is incorrect. In the English unit system the unit of mass is the slug.