# Is a physical quantity having magnitude and direction necessarily?

A physical quality both magnitude and direction need not be considered a vector for e.g, despite having magnitude and direction, current is a scalar quantity.

## Which of the following is a physical quantity that has a magnitude?

Vector Quantity – A physical quantity which has direction as well as magnitude. Example- Displacement, Velocity, Force.

## Is a physical quantity that has magnitude but no direction?

DEF: A scalar is a quantity that has magnitude but NO direction.

## Which quantity has magnitude and direction but not a vector?

Another such quantity that has both magnitude and direction but is not a vector is electric current. Electric current has a certain magnitude and direction of flow. However, two currents are always added algebraically similar to scalars.

## What is a vector quantity?

Vector Quantity Definition The physical quantities for which both magnitude and direction are defined distinctly are known as vector quantities.

## Is a quantity which has a magnitude and direction always a vector explain?

It is not necessary that a quantity having both direction and magnitude is a vector. If it has both but does not follow vector addition then it is not vector. Example: electric current has both magnitude and direction.

## Which of the following has both magnitude and direction?

A vector is a quantity that has both magnitude and direction.

## What is called if a body posses both magnitude and direction of velocity *?

A vector has both magnitude and direction.

## Which of the following has only magnitude and no direction?

The correct answer is Work. Work has only magnitude and no direction.

## What is a vector and scalar quantity?

A scalar quantity is a physical quantity with only magnitudes, such as mass and electric charge. On the other hand, a vector quantity is a physical quantity that has both magnitudes and directions like force and weight.

## What is a scalar quantity which has magnitude and no direction?

A scalar is any quantity that has a magnitude, but no direction. For example, a 20ºC temperature, the 250 kilocalories (250 Calories) of energy in a candy bar, a 90 km/h speed limit, a person’s 1.8 m height, and a distance of 2.0 m are all scalars—quantities with no specified direction.

## Does velocity has both magnitude and direction?

Velocity is a vector which has a magnitude and direction. The magnitude (or value) of the velocity is the object’s speed. The direction of the velocity vector is the direction which the object is moving.

## Does acceleration has both magnitude and direction?

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.

## What is the direction of a vector called?

The direction of a vector is often expressed as a counterclockwise angle of rotation of the vector about its “tail” from due East. Using this convention, a vector with a direction of 30 degrees is a vector that has been rotated 30 degrees in a counterclockwise direction relative to due east.

## What is scalar and vector with examples?

Scalar Quantities are defined as the physical quantities that have magnitude or size only. For example, distance, speed, mass, density, etc. However, vector quantities are those physical quantities that have both magnitude and direction like displacement, velocity, acceleration, force, mass, etc.

## Which is a scalar quantity?

Scalar quantities have a size or magnitude only and need no other information to specify them. Thus, 10 cm, 50 sec, 7 litres and 3 kg are all examples of scalar quantities. (b) Vector quantities have both a size or magnitude and a direction, called the line of action of the quantity.

## Is velocity a vector?

Speed is a scalar quantity – it is the rate of change in the distance travelled by an object, while velocity is a vector quantity – it is the speed of an object in a particular direction.

## Is momentum a vector or scalar?

momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.

## Are all physical quantities that have magnitude and direction vectors give example to support your answer when is a physical quantity called vector?

No, quantities having magnitude and direction should not be necessarily a vector . For example the Electric current.

## Which of the following quantities is a vector quantity?

The correct answer is Weight. Weight: The force applied by the gravity on the object is called the weight of that object. Weight is a type of force and force is a vector quantity. Hence weight is also a vector quantity.

## Which of the following physical quantity has a definite direction?

(A): If a physical quantity is a vector, it must have direction.
(R) : Electric Current has a direction therefore it is a vector quantity.

## Does time have magnitude and direction?

Time is completely separated from direction; it is a scalar. It has only magnitude, no direction. Force, displacement, and acceleration all occur with a designated direction.

## What is the magnitude and direction of vector?

A vector is a directed line segment with an initial point and a terminal point. Vectors are identified by magnitude, or the length of the line, and direction, represented by the arrowhead pointing toward the terminal point. The position vector has an initial point at (0,0) and is identified by its terminal point ⟨a,b⟩.

## Which quantity is a combination of speed and the direction?

Recall from Unit 1 of The Physics Classroom that speed and velocity refer to two distinctly different quantities. Speed is a scalar quantity and velocity is a vector quantity. Velocity, being a vector, has both a magnitude and a direction. The magnitude of the velocity vector is the instantaneous speed of the object.

## Why is the Force called a vector quantity on what factors does its magnitude depend?

Answer: Force has both direction and magnitude and obeys the vector law of addition. Hence, it is a vector.