# The frequency, f, is given in units of Hertz (Hz) or cycles/second (same thing)

The frequency, f, is given in units of Hertz (Hz) or cycles/second (same thing) when the time, t, is in seconds. The angular frequency is in units of radians per second. There are 2 radians or 360 degrees in a circle. A) What is the frequency in Hz of the sine wave shown above? B) What is the period in seconds of the sine wave? C) What is the amplitude of the sine wave? D) What would be the formula f(t) for a sine function that has twice the amplitude of the above wave and a frequency of 1000 Hz?