Speed and Velocity are two different terms that are used to described the relationship between distance Traveled by body and time taken by body to cover that distance. Speed is the distance covered by an object in a given time. It is calculated by dividing the distance by time. Speed is the Scalar quantity. While the time taken by object to travel in a certain direction is known as velocity.
This Post include:
- Speed vs Velocity Comparison of Table
- What is Velocity?
- What is Speed?
|
Speed |
Velocity |
|
Distance/Time |
Displacement/Time |
|
Tells speed of Body |
Tells Direction of
Body |
|
It is a Scalar
quantity |
It is a Vector
quantity |
|
It is positive |
It can be positive
or Negative |
|
Speed = distance
traveled / time |
Velocity =
displacement / time. |
|
Scalar: described only with the use of numerical units.
|
Vector: Described with the use of numerical units and
direction |
What is speed?
Speed is the relationship between the distance
of an object and the time it takes for the object to travel or cover that
distance. This time can be measured in different ways, such as meters, kilometres, knot or miles, per hour or per second. Therefore, speed can be
expressed as distance and time. Because it has no direction, only size.
Therefore, it is considered a scalar.
The distance cover during a specific interval
of time is called speed.
How to Calculate Speed In
Physics?
We can then write the
formula for the speed as shown below:
Speed = Distance
covered / time
Speed
= d/t
Distance = Speed × Time
Here S is the distance covered by an object, V is its speed,
and t is the time taken by it. Distance is a scalar quantity.SI unit of speed
is meter per second.
Characteristics of Speed
- It describes the distance traveled and the time taken to do so
- It always shows a positive value.
- It is a scalar quantity.
- The average speed results from the division between the distance
and a time interval.
What is Velocity?
Speed is the ratio between the distance an object travels and the time it takes to pass it in a specific direction. It refers to the time it takes to do so, from the initial reference point of the object to the point where the object moves (the end of the movement).
It is quantity that
determines the direction in which displacement occurs. It is a vector quantity. Speed is measured in meters per second (m / s).
Velocity=displacement/time
V=d/t
SI
unit of velocity is the same as speed i.e., meter per second.
Characteristics of Velocity
- Velocity is a change of an object’s position in a specific
direction in a given time interval.
- It shows a positive, negative, or even null (zero) values.
- It is a vector quantity.
- Average velocity involves the displacement between the time intervals.
Average Velocity
The
displacement covered by body from one place to another place. If an object is
in the same position within a given time interval, then its velocity is zero.
Therefore, the magnitude of the speed can also be negative.
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