Which quantity is scalar?

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Multiple Choice

Which quantity is scalar?

Explanation:
A quantity is scalar if it has only magnitude (size) and no direction, while a vector has both magnitude and direction. Mass fits this idea perfectly: it describes how much matter there is with no associated direction, so it is a scalar. Distance is also a scalar in that it measures how much ground was covered without specifying a direction, whereas displacement and velocity include direction, making them vectors. So mass is the scalar example here.

A quantity is scalar if it has only magnitude (size) and no direction, while a vector has both magnitude and direction. Mass fits this idea perfectly: it describes how much matter there is with no associated direction, so it is a scalar. Distance is also a scalar in that it measures how much ground was covered without specifying a direction, whereas displacement and velocity include direction, making them vectors. So mass is the scalar example here.

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