1) What is Pressure? a) Force per unit area b) Area times force c) Area per unit force d) Distance per unit time 2) What is the Unit of Pressure? a) Newton-meter b) Meter/sec c) Meter-sec d) Pascals 3) In which of the following examples the pressure is the smallest? a) A person standing on one foot b) A doctor giving an injection c) A person lying on floor d) A knife cutting an apple 4) A state of matter that is not a fluid? a) Solid b) Liquid c) Gas d) Juice 5) Pascal’s principle states that a contained fluid exerts pressure- a) only upwards. b) equally in all directions. c) only downwards. d) upwards & downwards 6) Which instrument is used to measure pressure? a) Newtonmeter b) Barometer c) Speedometer d) Telescope 7) Why is the atmospheric pressure less at the top of Mount Everest than at sea level? a) Pressure decreases with height b) Pressure decreases with depth c) Pressure doesnt change with height d) As we go up pressure increases 8) What is the pressure exerted by a box with area of 400m2 and a weight of 800N? a) 2Pa b) 4Pa c) 6Pa d) 3Pa 9) What is the formula that relates fluid pressure with depth and density of the fluid? a) P=F/A b) P=FxA c) P=hρ d) P=hρg 10) What are Hydraulics? a) devices that use gases to transmit pressure from one point to another. b) devices that use solids to transmit pressure from one point to another. c) devices that use liquids to transmit force from one point to another. d) devices that use liquids to transmit pressure from one point to another.
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Grade 9: Unit 11 Pressure & its Applications Revision
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