Question

what is the difference between pitch and intensity?

Answer 1

pitch means characteristics of sound based on frequency
Intensity means amount of energy crossed per unit area

Answer 2

Explanation:

"Pitch" is the perceptual correlate of fundamental frequency which is the rate of vibration of the vocal folds (in speech). "Intensity" is the perceptual correlate of... I'll say RMS amplitude. There are a lot of things that determine amplitude, such as the openness of the vocal tract.