Question

What are scalar and vector quantities?

Answer 1

Scalar quantity : The quantity which depends only on magnitude is called scalar quantity. Eg : distance 
Vector quantity : The quantity which depends both on magnitude as well as on direction is called vector quantity. Eg : displacement.

Answer 2

Answer:

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✦A scalar or scalar quantity in physics is one that can be described by a single element of a number field such as a real number, often accompanied by units of measurement. A scalar is usually said to be a physical quantity that only has magnitude, possibly a sign, and no other characteristics.

✦Vector, in physics is a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.