Differentiate between the scalar and vector
quantities three points. giving two examples of each.
Answers
What is a scalar?
A scalar is a quantity that is fully described by a magnitude only. It is described by just a single number. Some examples of scalar quantities include speed, volume, mass, temperature, power, energy, and time.
What is a vector?
A vector is a quantity that has both a magnitude and a direction. Vector quantities are important in the study of motion. Some examples of vector quantities include force, velocity, acceleration, displacement, and momentum.
What is the difference between a scalar and vector?
A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.
Example:
Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude. The speed is the magnitude of the velocity. A car has a velocity of 40 mph east. It has a speed of 40 mph.
HOPE IT HELPED
1:- The scalar quantity is described as the quantity that has only one characteristic, i.e. magnitude. The vector quantity is a physical quantity which needs both magnitude and direction to define it.
2:- Scalar quantities explain one-dimensional quantities. On the other hand, multi-dimensional quantities are explained by vector quantity.
3:- Ordinary rules of algebra are followed by scalar quantities to perform operations like addition, subtraction and multiplication, while for the performance of operations, vector quantities follow vector algebra rules.
4:- Scalar quantity changes only when there is a change in their magnitude. As against this, vector quantity changes with the change in their magnitude, direction or both.
Example: Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude.