Physics Trivia : Weight and mass



What do you use to measure 60kg in mass accurately on the moon?





Balance. 
The mass can be measured by the balance. The balance uses the fact of "The gravity of the earth applied to objects with the same mass is same." 
 
On the other hand, the weight can be measured by the spring balance. The spring balance uses the fact of "The degree the spring is transformed is proportional to the applied power." 
Because the force which the month pulls the balance weight will be also 1/6, as a result, it balances by 60 kilograms of weight by the balance. 
A substance of mass 60kg and weight 60kg in the erath will be mass 60kg and weight 10kg on the moon.