PHYSICS FORM 2 ONLINE TEST SERIES FLUID FLOW Bernoulli’s principle describes the property of a ………………………. A. fluid in motion B. fluid at rest C. object submerged in a fluid. D. object floating in a fluid. According to Bernoulli’s principle if velocity increases pressure ______. A. Increases B. Decreases C. Stays the same D. None of the Above According to Bernoulli’s principle, if pressure increases then velocity must ______. A. Decrease B. Increase C. Does Nothing. D. None of the Above If the pressure under the wing of an airplane is greater than the pressure on top of the wing, the airplane should ______. A. Fall B. Land C. Lift D. A and B Bernoulli’s principle helps to explain………………………………… A. hydraulic brakes. B. buoyancy of cruise ships C. how starfish can move. D. why umbrellas turn inside out What scientific rule says that the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding stationary fluid? A. Archimedes’ principle B. Pascal’s principle C. Bernoulli’s principle D. Charles’s Law 7. A 60,000N elephant can stand on one foot! The pressure it exerts is 240,000Pa. What is the area of its foot? A.0.16m2 B.0.24m2 C.0.25m2 D.4m2 8. Camels have big feet so they don’t sink into soft sand because ……. A.they have a large area so the pressure is large B.they have a large area so the pressure is small C.they have a small area so the pressure is large D.they have a small area so the pressure is small 9. A sharp knife cuts well because ……. A. it has a large area so pressure is large B. it has a large area so pressure is small C. it has a small area so pressure is large D. it has a small area so pressure is small 10. Doubling the force and doubling the pressure mean ……. A.that area doubles B.that area gets larger C.that area gets smaller D.that area stays the same Loading … Question 1 of 10
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