What do we mean when we say "1 kg of bananas"? 1. The problem statement, all variables and given/known data If I buy 1 kg bananas in a supermarket on the moon, will I get the same amount (mass) of bananas as if I bought them on the earth? 2. Relevant equations w=mg g moon = 1/6 g earth 3. The attempt at a solution It depends on what they mean by 1 kg surely. If the supermarkets are meaning 1 kg mass, the answer is yes. If they mean 1 kg wt (= force) then no. What does the supermarket mean when they say "1 kg"? Another way of looking at it: If they us an oscillatory balance, yes. But, if they use a spring balance, no. Am I right?