# Is power a scalar or vector Why?

## Is power a scalar or vector Why?

Work Done, Kinetic Energy (KE), Gravitational Potential Energy (GPE) and Power are all SCALAR quantities. Many have asked if Work Done is scalar or vector? Though from our textbook, Work Done = Force x distance in the direction of the force. In other words, Work Done = Force x Displacement.

since energy, work done and time are scalar, Power is a scalar quantity. Other important note: Power = Rate of work done = Rate of energy conversion.

Is power is scalar or vector quantity? Since, time is not considered as a vector quantity, and neither energy or work because the work is not directional. So the power is said to be the ratio of two scalar quantities. So yes, the power is a scalar quantity because it has a unit magnitude but no direction.

In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.

Force is always a vector quantity, since the direction of the force matters in defining the parameter. “Four Newtons to the right” is quantifiably different from “four Newtons downward” or “four Newtons to the left.”

Velocity has both magnitude and direction that is why it is a vector quantity.

Scalar quantities have only a magnitude. When comparing two vector quantities of the same type, you have to compare both the magnitude and the direction. The energy, work, and entropy associated with the engines are also scalar quantities. Vectors have magnitude and direction, scalars only have magnitude.

Weight is a force which is a vector and has a magnitude and direction. Mass is a scalar. Weight and mass are related to one another, but they are not the same quantity.

Some examples of scalar quantities include speed, volume, mass, temperature, power, energy, and time.

Scalar and vector quantities Scalar quantities have a size or magnitude only and need no other information to specify them. Vector quantities have both a size or magnitude and a direction, called the line of action of the quantity.

The energy of a body can be defined as the work done by that body. It is a scalar quantity because we just need the magnitude of energy while it does not possess any direction. They are actually derived from vector quantities of force and displacement by taking their scalar product.

Explanation: Power is a scalar quantity and has a unit,a magnitude(a numerical value) but no direction.

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