For a body moving with simple harmonic motion, the number of cycles per second, is known as its

ANS:E - frequency.

For a body moving with simple harmonic motion (SHM), the number of cycles per second is known as its: "frequency." Frequency is a fundamental characteristic of SHM and represents how many complete oscillations or cycles occur in one second. It is measured in hertz (Hz), where 1 Hz represents one cycle per second. Therefore, frequency is a crucial parameter that describes the rate at which the body oscillates or undergoes its repetitive motion in SHM.