Periodic Motion — Prelims Questions

Which of the following motions is an example of periodic motion but NOT oscillatory motion?

A particle completes 120 revolutions in 2 minutes. What is its frequency in Hertz?

A simple pendulum of length $L$ has a period $T$. If its length is quadrupled (made 4 times), what will be its new period?

An object performs simple harmonic motion with an angular frequency of $4pi,\text{rad/s}$. What is its frequency in Hertz and its period in seconds?

A mass $m$ is attached to a spring with spring constant $k$. If the mass is increased to $4m$, how does the period of oscillation change?

Which of the following statements is TRUE regarding periodic motion?