In this topic, we will learn about different types of vectors like a unit, free, null vector, like, unlike, coplanar, position, initial, proper, negative, and equal vectors. Further, we will learn with examples of vectors to get a better understanding.
Suggested video: Vectors
Types of vectors
In general, there are 12 types of Vectors in Physics which are:
- Proper vectors
- Axial vectors
- Inertial or pseudo vectors
- Unit Vectors
- Free Vectors
- Position Vectors
- Negative Vectors
- Null Vectors
- Like Vectors
- Unlike Vectors
- Equal vectors
- Co initial vectors
Displacement, force, momentum, etc are the proper vectors.
The vectors which act along the axis of rotation are called axial vectors. For example, angular velocity, torque, angular momentum, angular acceleration are axial vectors.
Read Also: Physical Quantities
Pseudo or inertial vectors
The vectors used to make an inertial frame of reference into the inertial frame of reference are called pseudo or inertial vectors. The vector may be further divided as:
A unit vector is that whose magnitude is unity i.e 1 and has any given direction only. A unit vector is obtained by dividing the vector by magnitude.
A vector that can be displaced parallel to itself and applied at any point is called a free vector.
A vector that represents the position of a point with reference to a fixed point is called a position vector.
A vector having the same magnitude as that of the given vector but the opposite direction is called a negative vector.
- A vector whose magnitude is zero and has no direction, it may have all directions is said to be a null vector. A null vector can be obtained by adding two or more vectors.
Like or parallel vectors
If two vectors have the same direction but the different magnitude is called parallel or like vectors.
Two vectors having opposite directions and unequal magnitudes are called, unlike vectors.
Two vectors are said to be equal if they have equal magnitudes.
Co -initial vectors
If vectors have a common initial point, then these types of vectors are called co initial vectors.
Vectors are called co-linear if they have in the same line or parallel.
- Vectors that are lying in the same plane are called coplanar vectors.
- Difference between vectors and scalar quantities
- Vector dot product and cross product
- Difference between vector dot product and cross product