"Which is heavier?1 kilo of nails? or 1 kilo of cotton? Why?

Hi chammy000123! Well, they are of the same weight, isn't it? They both weigh a kilo each so that means they are of equivalent weight. Not one is heavier than the other which follows that not one is lighter than the other. Have a nice day and take care!

its the same... since its 1 kilo so they have the same weight. The difference is I guess you will be carrying one plastic of nails and 2 plastic of cotton. and you will be carrying 2 plastic bags of cotton since cotton is lighter then you will need more cotton to get 1 kilo. So i guess the point here is that you will just think that cottons are lighter but the tyruth is to be able to have one kilo you will need a lot of cotton than nails.

hey when the weight of two substances is same then they would be equally heavy. the density of iron is shigh so the volume of nails is small and you feel that its more heavy than the cotton but practically its the same.

If it's 1 kilo of one thing and 1 kilo of another thing then they weight the same amount no matter what it is. There might be a higher quantity of one than the other. For example, it's going to take a lot less nails than cotton balls to get to a kilo.