Label the parts of the wave as indicated on the diagram.
diagram showing the parts of a wave
A.
, B.
, C.
, D.
, E.
, F.
, G.
, H.
, I.
A. Crest
B. Trough
C. Amplitude
D. Wavelength
E. Rest position
F. Cycle
G. Period
H. Frequency
I. Velocity