![]() ![]() In the imperial system, pounds are units of both force and weight. ↳ Is this connected to that? Use a homemade electronic tester to find out if electricity can flow between two objects. PSI Explained as a Measure of Pressure Pounds per square inch is the unit of pressure in the imperial system of measurement, and physics tells us that pressure is defined as force per unit area.↳ Investigating the 'Mpemba Effect': Can Hot Water Freeze Faster than Cold Water?. ![]() ↳ From Dull to Dazzling: Using Pennies to Test How pH Affects Copper Corrosion.↳ Forensic Science: Building Your Own Tool for Identifying DNA.Psig: when pressure is measured with respect to atmospheric pressure. 2 Psia: when pressure is measured with respect to vacuum. ↳ Electrolyte Challenge: Orange Juice vs. 1 Sometimes, PSI is specified on whether it is measuring gauge, absolute, or differential pressure.↳ Do Oranges Lose or Gain Vitamin C After Being Picked?.↳ Math & Computer Science Sponsored by Hyperion Solutions Corp.↳ Grades 9-12: Getting Ready for the Science Fair.↳ Grades 6-8: Getting Ready for the Science Fair.↳ Grades K-5: Getting Ready for the Science Fair.↳ Science Teachers: Fairs, Projects, and General Support.↳ Advanced Science Competitions (Intel ISEF, Intel STS, Siemens Competition, JSHS, etc.).↳ Grades 9-12: Math and Computer Science.↳ Grades 9-12: Life, Earth, and Social Sciences.↳ Grades 6-8: Math and Computer Science Pounds square per inch, also known as pound-force per square inch, is a unit of pressure measurement based on avoirdupois, and the same has been denoted by various abbreviations such as psi, lb/in, lb/in, lbf/sq in, lb/sq in, etc.↳ Grades 6-8: Life, Earth, and Social Sciences.↳ Grades K-5: Math and Computer Science.↳ Grades K-5: Life, Earth, and Social Sciences.Active Forums (Make all new posts here).Out of curiousity, what angle did you find had the largest distance traveled? If you can provide more detail about your exact experimental set-up, we'll be able to explore more of the physics involved. Try playing around with the pressure to figure out the optimum pressure for distance traveled and for hangtime. It may also be that the pressure that gets you the longest distance traveled may be a different pressure from the pressure required to maximize hangtime. I'm not clear on the exact setup of your experiment, so I can't really comment of the physics going on, but I would not be surprised if there were an optimum pressure. If your were to shoot at, say, 10 psi, the rocket would not go as far, and if it were shot at 20 psi, it would not go as far. I don't know what sorts of pressures you are working with, but, for example (THIS IS AN EXAMPLE, NOT FACT!) it may be that you find a maximum distance when the pressure is at 15 psi. Anything more or less than this results in poorer performance. ![]() Often times in science and engineering, there is such a sweet spot. Symbols, abbreviations, or full names for units of length,Īrea, mass, pressure, and other types.It may be that there is a "sweet spot" or particular psi at which you can maximize the distance traveled and minimize hangtime. You can find metric conversion tables for SI units, as wellĪs English units, currency, and other data. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.Ĭonversion calculator for all types of measurement units. ![]() The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units.
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