Difference between constant speed and average speed

Physics · Middle School · Wed Jan 13 2021

Answered on

Constant speed and average speed are concepts used in the context of motion and describe different aspects of an object's movement. Here are the key differences between constant speed and average speed:

  1. Constant Speed:
  • Definition: Constant speed refers to the situation where an object covers equal distances in equal intervals of time. In other words, the object's speed remains the same throughout its motion.
  • Characteristics: The speed does not change.
  • The distance covered in each unit of time (e.g., each second) is the same.
  • The velocity (speed with direction) remains constant if the motion is along a straight line.

2.Average Speed:

  • Definition: Average speed is the total distance traveled divided by the total time taken. It provides a measure of the overall speed of an object over a given period, considering any variations in speed.
  • Calculation:
  • Average Speed=Total Distance / Total Time

Characteristics: The speed may vary during the motion.

  • Average speed is a scalar quantity (magnitude only).
  • It gives a sense of the overall speed over a journey, regardless of variations in speed.