1) What does psi stand for? a) Pressure Standard Index b) Pounds per Square Inch c) Pressure per Square Inch d) Pounds Standard Index 2) What is the standard unit for pressure used by physicists?  a) Pascal b) Bar c) Atmospheres d) Psi 3) 1 Pa is equivalent to... a) 1 Atmosphere b) 1 Bar c) 1 Nm2 d) 1N/m2 4) What is the Earth's atmospheric pressure at sea-level? a) 100Pa b) 1Pa c) 1kPa d) 100kPa 5) A 1m3 container is filled with a gas at 100Pa. The container is compressed to a volume of 0.5m3. What pressure is it now held at? a) 50Pa b) 100Pa c) 200Pa d) 300Pa 6) A balloon held at fixed temperature is inflated from 0.1m3 to 0.4m3. The gas inside the balloon is now at a pressure of 80kPa, what was the original gas pressure? a) 320kPa b) 80kPa c) 160kPa d) 20kPa 7) Which equation correctly describes the pressure exerted on a surface? a) b) c) d) 8) Which equation correctly shows the pressure exerted by a fluid? a) b) c) d) 9) Which statement correctly describes Archimedes' Principle? a) The buoyancy force is equal to the mass of the fluid displaced. b) The buoyancy force is equal to the weight of the fluid displaced. c) The buoyancy force is equal to the upthrust of the fluid displaced. d) The buoyancy force is equal to the pressure of the fluid displaced. 10) When submerging a solid into water, what volume of water will be displaced? a) The volume of the solid. b) The mass of the solid ∻ density of water. c) The mass of the water ∻ density of the solid. d) Half the volume of the solid.

Emerging - Pressure

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