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Does mass always stay the same?
The mass of an object can be subtracted or added. For example, with water, you can just add more to have a larger mass. With ice, you can just chop off a portion to lessen its mass. Though, if you take a piece of paper and crumple it up, the mass will stay the same. It just depends on the context of the situation.
If a metal object receives a positive chargedoes the mass of the object increasedecreaseor stay the same?
Object A is charged . Because the neutral objects do not repel or attract charged bodies..
Why will a person's mass never change whether they are on earth or on the moon?
Because mass is not the same as weight. Weight is mass times gravity so your weight will change if you are on the earth or moon but your mass will stay the same.
When you cut an apple into pieces does its mass stay the same or does it get smaller?
Its mass remains the same (except for the very small amounts that stick to the knife blade).
Why is it important that you measure the circumference and diameter of each object in the same units?
We know the formula C / d = pi. pi must stay a constant. That is why the ratio of the circumference C and the diameter d must have always the same length unit
