Answer:

SINEWAVE

AnswerCrossword Clue
SINEWAVEOscilloscope curve
SINEWAVECurve on a graph
SINEWAVEMathematical curve
SINEWAVEOscilloscope picture
SINEWAVEPeriodic oscillation
SINEWAVEIt has its highs and lows in math
SINEWAVEPattern for light or sound
SINEWAVE[See circles]
SINEWAVESymbol of simple harmonic motion