Question

Classify the scalar and vector quantities of the following: Force, torque, surface tension, momentum and temperature.

Answer 1

Hint:Volume, density, speed, energy, mass, and time are examples of scalars, which are physical quantities that are fully characterized by their magnitude. They do not have a direction of action. Vector refers to a quantity of both magnitude and direction. Other quantities, such as force and velocity, are called vectors because they have both magnitude and direction.

Complete answer:
A force has both magnitude and direction, therefore: Force is a vector quantity. Forces can cause motion; alternatively forces can act to keep objects at rest. The torque vector's direction is determined by the force acting on the axis. Therefore, torque is a quantity that is measured as a vector. Torque is intuitively understood by everyone who has ever opened a door.

The force exerted by the surface of a fluid that is perpendicular on both sides to a line on the surface per unit length of the line is known as surface tension. Hence it is a scalar quantity with the same numerical value as the surface energy.The product of a body's mass and velocity is known as the momentum of that body. That is, momentum is a vector quantity.Temperature is a directionless scalar quantity. As a result, temperature has a magnitude but no particular direction.

Note:We should note that vector quantities are quantities that possess both magnitude and direction, whereas scalar quantities are quantities that possess magnitude.A scalar quantity is defined as the physical quantity that has only magnitude, for example, mass and electric charge. On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force and weight.