A mechanical system is known to perform simple harmonic motion. What quantity must be measured in order to determine frequency for the system?

What do you mean by simple harmonic motion?

The motions that repeat themselves are called periodic motions but for a simple harmonic motion, the force must be proportional to the displacement and it is directed towards the centre of motion. Write an example for a periodic motion that is not simple harmonic.

The motions that repeat themselves are called periodic motions but for a simple harmonic motion, the force must be proportional to the displacement and it is directed towards the centre of motion. Write the expression for a period of oscillation of a loaded spring.

The motion that repeat themselves are called periodic motions but for a simple harmonic motion, the force must be proportional to the displacement and it is directed towards the centre of motion. A particle executes a SHM of amplitude 'a'. At what distance from the mean position is its kinetic energy equal to its potential energy?

Motion of a simple pendulum is an example for simple harmonic motion. The acceleration due to gravity on the surface of the moon is 1.7 m/s^2 .What is the time period of a simple pendulum on the moon,if its time period on the earth is 3.5 seconds ?