what are some household ojects that state the amount of mass?

Question

seriously...it's for my son's science homework an dI don't have a clue:(

He ahs to find things in the house that has the mass on them. He says weight and mass are not the same thing. I thought they were.

Answer 1

In scientific terms, weight and mass are not the same. Weight is determined by the effect of gravity on an objects mass. That is why something will a given mass will weigh a different amount on Earth vs on the moon.

A lot of grocery items do have mass on them - and I would look for SI or metric units. The English (American) unit of mass is actually a slug (or pound-mass.) What we call pound is actually a weight (force.)

In SI or metric units, look for something given in grams or kilograms.

Answer 2

well, most items I can think of that have an amount on them are grocery items

these amounts are often given in weight units instead of mass units but it is convertable and we often use them interchangeably

a pound of butter, considered as a pound-mass is equivalent to about 454 grams

cereal has a weight on the box, usually given in ounces, that can be considered as a mass equivalent, or coverted to grams, which are a more common mass unit

I think most grocery items these days have a weight on them which, for this kind of excercize is the same as a mass

I'm not sure thats what the homework assignment is intending but certainly those kinds of items do state an amount that reveals the mass

Answer 3

A measuring cup ? :)