Match each technical term with its corresponding meaning
The height of the wave above or below a given reference point.
Amplitude
The number of times a signal makes a complete cycle within a given time frame.
Frequency
The position of the waveform relative to time 0.
Phase
The amount of time a singal needs to complete a cycle.
period
Which of the following is the unit of amplitude?
Degrees
radians
gigahertz
volts
Which of the following is the characteristic of the frequency domain when describing an analog signal?
The frequency domain uses time on the x-axis and frequency on the y-axis.
The frequency domain is used to analyze the time variations of a signal over a period.
The frequency domain represents the signal with frequency on the x-axis and amplitude on the y-axis.
The frequency domain is not suitable for analyzing periodic signals.
Term translation：direct current
Term translation：electromagnetic signal
Term translation：功率
Term translation：波形