Question

The circular motion of a particle with constant speed is

• A. Periodic but not simple harmonic
• B. Simple harmonic but not periodic
• C. Periodic and simple harmonic
• D. Neither periodic nor simple harmonic

Answer 1

The correct option is A

Periodic but not simple harmonic

Periodic motion: Motion is repeated at regular intervals of time.

Simple Harmonic motion: A periodic motion where the object oscillates about a given fixed point.

Explanation for the correct option:

Option A:

1. The circular motion of a particle with constant speed can be defined as uniform circular motion.
2. As the speed in constant, the object will cover equal distances in equal intervals of time.
3. It repeats motion after every completion of its circumference, hence it is a periodic motion.
4. But as it is not oscillating about any fixed point, it cannot be a simple harmonic motion.

Therefore, option A is the correct option.