Distinguish between Vector quantity and a Scalar quantity.
Distinguish between Vector quantity and a Scalar quantity.
| Vector quantities | scalar quantities |
| $(1)$ The physical quantities which require direction over and above their magnitude for their specification are called vector quantities. | $(1)$ The physical quantities which can be described bytheir magnitude only are called scalar quantities. |
| $(2)$ For Example : velocity, acceleration, force, weight, Displacement, momentum etc. | $(2)$ For Example : speed, mass, volume, size, temperature, amount of substance, power, work done, pressure, time etc. |
| $(3)$ While representing these quantities both magnitude and direction are to be stated. | $(3)$ While representing these quantities only its magnitude is required i.e., correct value with units. |
| $(4)$ These quantities can not be added algebraically. | $(4)$ These quantities are added or substracted algebraically. |
Similar Questions
Which of the following is a vector
Which of the following is a vector
A vector has a magnitude $x$. If it is rotated by an angle $\theta$, then magnitude of change in vector is $n x$. Match the following two columns.
Colum $I$
Colum $II$
$(A)$ $\theta=60^{\circ}$
$(p)$ $n=\sqrt{3}$
$(B)$ $\theta=90^{\circ}$
$(q)$ $n=1$
$(C)$ $\theta=120^{\circ}$
$(r)$ $n=\sqrt{2}$
$(D)$ $\theta=180^{\circ}$
$(s)$ $n=2$
| Colum $I$ | Colum $II$ |
| $(A)$ $\theta=60^{\circ}$ | $(p)$ $n=\sqrt{3}$ |
| $(B)$ $\theta=90^{\circ}$ | $(q)$ $n=1$ |
| $(C)$ $\theta=120^{\circ}$ | $(r)$ $n=\sqrt{2}$ |
| $(D)$ $\theta=180^{\circ}$ | $(s)$ $n=2$ |
Pick out the two scalar quantities in the following list :
force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic moment, relative velocity.
Pick out the two scalar quantities in the following list :
force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic moment, relative velocity.
$0.4\hat i + 0.8\hat j + c\hat k$ represents a unit vector when $c$ is
$0.4\hat i + 0.8\hat j + c\hat k$ represents a unit vector when $c$ is
The unit vector along $\hat i + \hat j$ is
The unit vector along $\hat i + \hat j$ is