Page 22 - Science Class 6 Times Publication
P. 22

Circular motion

          When an object moves in a circular
          path, its motion is called circular
          motion. In this motion, the distance
          of the object from the centre remains

          xed. For example, motion of hands
          of  watch,  movement  of  the  earth
          around the sun, etc.



                                                             Circular motion of the earth
          Rotatory motion

          When an object moves around its own axis, its motion is called
          rotatory motion. For example, movement of the earth around its axis,

          movement of Janto around the rod xed in the middle, motion of a
          spinning top, motion of blades of fan, etc.










              Spinning top                 Janto                    Blades of fan
          When an object moves in to and fro motion, its motion is called
          oscillatory motion. In this motion, the object moves forward and then
          backward. For example, motion of pendulum, motion of swing, etc.

          Oscillatory motion

          When an object moves in any direction without showing a particular
          motion, its motion is called random motion. For instance, movement
          of football player in the ground, movement of smoke and dust particles
          in air, etc.










                        Motion of a swing                    Motion of a pendulum

          Times' Crucial Science and Environment  18                                  Book 6
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