Question

which wave property determines 1) loudness and 2) pitch?

Answer 1

I think pitch,,,,,,,,,,,

Answer 2

(1) Amplitude (2) Frequency

(1) The loudness of a sound depends on its amplitude. If the amplitude of a sound is large, then the sound produced will also be loud.

(2) The pitch of a sound depends on its frequency. A sound will be considered a high pitched sound, if its frequency is high.