Question 14
Identify the different types of motion in the following word diagram given as Fig.
The types of motion hidden in the puzzle are rotational motion, rectilinear motion, circular motion and periodic motion.
(i) Rotational motion: It is the motion of an object through a circular path about a fixed axis. The movement of a spinning top is an example of rotational motion.
(ii) Rectilinear motion: It is the motion of an object along a straight line. The motion of a train is an example of rectilinear motion.
(iii) Circular motion: It is the motion of an object along a circular path. The motion of blades of an electric fan is an example of circular motion.
(iv) Periodic motion: Motion that repeats itself at regular interval of time is periodic motion. The motion of a child on a swing is an example of periodic motion.