The difference in pitch.
Compared to a tuba, it's higher. Compared to a piccolo, it's lower.
the alternating areas of quickly moving high and low pressure
It has a very high pitched sound whereas instruments like the Guitar have a very low sound.
High compared to hydrogen and helium, low compared to lead, gold and uranium.
The cry of a baby is a high pitched sound (high frequency) and the baritone voice of a singer or the sound coming from a big drum is low pitch (low frequency). In general men have lower pitch voices compared to women and children.
"High" and "low" only have meaning when they're compared to something. Visible light has high energy compared to radio waves, and low energy compared to X-rays.
high
The pitch of the sound.
No, it creates a low sound.
low
In general, a low pitch is created by sound waves vibrating and having to travel down a lengthy object, while a high pitch only has to travel down a shorter distance
Low viscosity liquid is more runny, like water, then compared to a high viscosity liquid.