tension is a vector!(At first I thought it was a scalar too but this afternoon it was in our physics quiz,I answered scalar but I got it wrong because tension is a vector).
this is the explanation:
tension is the force producing such deformation.
anything with force is a vector.Force always has direction.
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Tension is a vector quantity because it has both magnitude and direction. It describes the pulling force exerted by a rope, string, or cable on an object in a specific direction.
Stress is a tensor. It has 9 components, each of which has a magnitude (a scalar) and
two directions associated with it.
Surface tension is a scalar quantity, as it only has magnitude and no direction. It represents the force per unit length acting parallel to the surface of a liquid.
vector
scalar
A scalar is a magnitude that doesn't specify a direction. A vector is a magnitude where the direction is important and is specified.
The product of a vector and a scalar is a new vector whose magnitude is the product of the magnitude of the original vector and the scalar, and whose direction remains the same as the original vector if the scalar is positive or in the opposite direction if the scalar is negative.