barbells
10kg
320 pennies
Most standard textbooks for school weigh about 1 kg (or about 2.2 pounds).
Some household items that weighs 400 grams are books, coke in can etc. They have this mass making them light enough to be handled, making them more useful.
It would weigh 10kg.
Fridge
10kg
Both the 10kg stack of books and the 10kg piece of Styrofoam weigh the same amount, 10kg, because weight is a measure of the force due to gravity acting on an object's mass.
10kg
barbells
a pint of water.
10kg
10kg
320 pennies
Anything in a pint, a pillow, a loaf of bread, easy weights.
Nearly everything. 1 Kg is 2.2 pounds.