Question

Choose the odd one out.

• A. The movement of Earth causing day and night
• B. Spinning Top
• C. Windmill
• D. Swirling a rock tied to a thread

Answer 1

The correct option is D

Swirling a rock tied to a thread

Swirling a stone tied to a thread is circular motion. It is circular motion because the path taken by the stone is a circle. For example, a train running around a circular path is in a circular motion.

While all the other options are rotational motion. Rotational motion is the motion when a body rotates about an axis. The rotation of the earth causes day and night.