science
Grade-7
Easy

Question

An object is said to be in motion if it's _____ changes with ____. 

  1. Position, time 
  2. Time, position 
  3. Weight, time 
  4. Time, weight 

hintHint:

The object is said to be in motion when it changes its position with time.

The correct answer is: Position, time 


    • The object is moving or not, it depends on its speed and the direction where it is moving.  If a body has zero speed, then it is said to be in rest state of motion.

    The object is said to be in motion when it changes its position with respect to time.
    For example: A tiger chasing after its prey is an object and the chasing is motion with respect to time of surrounding that the time we say the tiger is chasing.

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