Answer to Question #135805 in Physics for Kian

Question

1.What are vectors?
2.How is a vector quantity different from that of scalar?

Answer 1

1. Vector is the element of vector space (or, in other words, the tensor of order 1). In physics it is common to represent a vector as an arrow. Thus, a vector can be described with two quantities: a length and a direction. Vectors might denote such quantities as displacements, velocities, forces, etc.

2. Scalar is the tensor of order 0. Unlike a vector, it can be characterized by only one quantity. For example, mass, temperature, gravitational constant - are all scalars.