Design an investigation using holes at different depths in a tall bottle to test how water pressure changes with depth.

Question

Accepted Answer

Use equal holes, measure horizontal jet range from each depth under controlled water level, repeat or video the jets, and relate greater range to greater exit speed and pressure. Make equal-sized holes on one vertical line and measure each depth below a maintained water surface. Open one hole at a time or capture all jets simultaneously before the water level changes appreciably. Measure horizontal range to a fixed landing level, repeat and graph range or derived speed against depth. Control hole size and water level, contain spills, smooth sharp edges and state that range is an indirect pressure measure.

Bottle-hole pressure map

Design an investigation using holes at different depths in a tall bottle to test how water pressure changes with depth.

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