Moters have two major properties rpm and tourque. RPM is its rounds per minute(obviously). Tourque in this case is basically its ability to turn larger amounts of weight. So if the motor does not have enough tourque the RPMs will slow. But if the motor has enough tourque it will be able to continue at its origional rpms without slowing.
if you did not have the holes in the bottle you could amplify the sound, but because you put holes in the bottle it merely disperses the pressurized gasses(air) before it leaves the barrell thus reducing the sound.
Find content
