1
ELECTROMAGNETIC SIGNAS ORDERED BY THEIR FREQUENCY O WAVELENGTH.
2
THE DISTANCE A WAVE TRAVELS TO COMPLETE A CYCLE.
3
DIFFERENCE BETWEEN THE MAXIMUM VALUE AND THE MEAN VALUE OF A WAVE.
4
NUMBER OF OCCURRENCES OF A REPEATING WAVE PER UNIT OF TIME.
5
EMPTY SPACE
6
THE TIME IT TAKES A WAVE TO COMPLETE A CYCLE OF OSCILLATION OR VIBRATION.
7
RELATIONSHIP IN TIME BETWEEN TWO WAVES OF THE SAME FREQUENCY.