What is the weight of a 7.0-kilogram bowling ball on the surface of the moon?

the mass is 7 kilograms.

mass is constant and does not change in different environments (such as different gravitational fields) as it is "stuff". What changes is weight, or the force felt by gravity on the mass due to the equation: F=MA, were F is the weight of the object being recorded, M is the mass (constant in this case), and A is the acceleration (in this case gravity). A bowling ball would have the same mass on earth as on the moon, but its weight would be different due to the different acceleration due to gravity.

explanation:

newton's third law, for every action there is an equal and opposite reaction.