What are the similarities and differences between speed and velocity?
Speed, velocity and acceleration these three words are well introduced with us in class 9. All the three words speed, velocity and acceleration has some similarities and differences between them. We have discussed it on later part of the articles. But before we proceed with relation, similarities and differences between these three terms. we have to keep in mind a rough idea about speed, velocity and acceleration. So lets start with Speed.
What is speed?
Speed is defined as the actual path covered by the body in every direction with respect to time consumed by the body in every aspect of positions is called speed.
- It is scalar quantity.
- It has no direction.
- speed is denoted by 'S'.
- Generally seed is measured by m/s or km/hr.
- So, S.I unit of speed is m/s.
- C.G.S unit of speed is cm/s.
- It depends on the actual path of the body weather it may be curve or straight.
What is velocity?
Velocity is defined as the shortest distance (called as displacement) travelled by the body with respect of every point of time is called velocity.
- It is vector quantity.
- It has magnitude as well as direction.
- velocity doesn't depends on the actual path covered by the body.
- It's value depends on the direction in which body has travelled.
- S.I unit of velocity is m/s or km/hr.
- C.G.S unit of speed is cm/s.
- It depends on the straight line path not curved or actual path.
- Velocity is denoted by 'V'.
- It is of two types ''Initial velocity(u) and Final velocity(v)''.
What is acceleration?
Acceleration is defined as the rate of change of velocity with respect of time is called acceleration. It is of two types first is uniform acceleration and second is non-uniform acceleration.
- S.I unit of acceleration is m/s2.
- It is vector quantity.
- It has both direction and speed.
- Acceleration doesn't depends on the actual path covered by the body.
- It's value depends on the direction in which body has travelled.
- C.G.S unit of acceleration is m/s2.
- It is denoted by 'A'.
- It is of two types Uniform acceleration and non-uniform acceleration.
Similarities and differences between speed and velocity
- The similarities between speed and velocity is that both have same S.I unit m/s.
- The similarities between speed and velocity is that both are measured in same unit.
- The similarities between speed and velocity is that both may have been positive value.
- The differences between speed and velocity is that speed doesn't depends on nature of the path but velocity depends on the nature of the path.
- The differences between speed and velocity is that speed is scalar but velocity is vector quantity.
- The differences between speed and velocity is that speed is distance respect of time but velocity is displacement respect of time.
- Speed is denoted by ''s'' but velocity is denoted by ''v''.
- Speed is only one type but velocity is of two types.
- Speed can never be zero but velocity can be zero.
- Speed can never be negative but velocity can be negative.
People also ask
What is the difference between the velocity and speed of an object moving in a straight line?
Ans:- The difference between speed and velocity of an object moving in a straight line is that if a body returns to their initial stage from where he started, then velocity will be zero due to the displacement will be zero. but speed will not be zero.
What are the similarities and differences between speed velocity and acceleration?
Ans:-
- The similarities between speed velocity and acceleration is that all the three terms may have a positive value.
- The differences between speed velocity and acceleration is that speed can never be zero and negative but velocity and acceleration may be negative and zero.