What is the term for the number of oscillations of any object in a given time?

What is the term for the number of oscillations of any object in a given time?

• A. Wavelength
• B. Frequency
• C. Period
• D. Amplitude

Answer: (B)

The rate at which something repeats its motion over time is called frequency. It tells you how many complete oscillations occur in one second and is measured in hertz (Hz). A handy relation is f = 1/T, where T is the time for one full oscillation (the period). So if an object completes 5 swings in 2 seconds, the frequency is 5/2 = 2.5 Hz. Wavelength refers to the spatial distance between successive points of the same phase in a wave, not how many oscillations happen per second. Amplitude is the size of the swing or displacement from equilibrium, not the rate. Period is the time for one complete oscillation, which is the reciprocal of frequency.

The rate at which something repeats its motion over time is called frequency. It tells you how many complete oscillations occur in one second and is measured in hertz (Hz). A handy relation is f = 1/T, where T is the time for one full oscillation (the period). So if an object completes 5 swings in 2 seconds, the frequency is 5/2 = 2.5 Hz.

Wavelength refers to the spatial distance between successive points of the same phase in a wave, not how many oscillations happen per second. Amplitude is the size of the swing or displacement from equilibrium, not the rate. Period is the time for one complete oscillation, which is the reciprocal of frequency.