Amplitude (A): The optimum displacement of a vibrating body on either side from its mean position is called its amplitude. The motion equations for simple harmonic motion provide for calculating any parameter of the motion if the others are known.It is reciprocal of time period i.e., f = 1/T. Frequency (f): The number of vibrations or cycles of a vibrating body in one second is called its frequency.Time Period (T): The time taken by a vibrating body to finish one vibration is called the time period.Vibration: One complete round trip of a vibrating body about its mean position is called one vibration.Stay tuned with BYJU’S to get more physics formulas, derivations, and other preparation materials. Calculate the acceleration and the velocity of the body when the displacement is (a) 5 cm (b) 3 cm (c) 0 cm. Now we discuss various terms that characterize simple harmonic motion. A body is in simple harmonic motion is having an amplitude of 5 cm and a period of 0.2 s. Its velocity is optimum at the mean position and zeroes at the extreme positions.The magnitude of velocity is always directly proportional to its displacement from the mean position i.e., acceleration will be zero at the mean position while it will be optimal at the extreme positions. Its acceleration is always directed towards the mean position.The time interval for each complete vibration is the same.
A body carrying out SHM always vibrates about a fixed position. Simple harmonic motion, in physics, repetitive movement back and forth through an equilibrium, or central, position, so that the maximum displacement on one side of this position is equal to the maximum displacement on the other side.Essential features of SHM are summarized as: