What are the four fundamental properties of an analog signal?

the four fundamental properties of an analog signal are :
1)  Amplitude - A measure of a signal's strength, example would be how
                        much a radio wave moves back and forth.
2)  Frequency - the number of waves that move past a given point in a
                         given unit of time.  It is expressed in the hertz unit.
3)  Wavelength - the distance between corresponding points on the wave's
                           cycle
4)  Phase -  position of a point in time (an instant) on a waveform cycle.

True or false? is that the question