MCQ Archimedes’ Principle Chapter 9 Class 9 Science Advertisement MCQ’s For All Chapters – Science Class 9th 1. Archimedes’ Principle is related toForce and MotionPressure and ThrustBuoyant ForceEnergy ConservationQuestion 1 of 202. According to Archimedes’ Principle, a body immersed in a liquid experiencesUpward force equal to its weightUpward force equal to the weight of the liquid displacedDownward force equal to its massNo forceQuestion 2 of 203. The upward force acting on a body immersed in liquid is calledFrictionGravityBuoyant forceCentripetal forceQuestion 3 of 204. When a body is completely immersed in water, it appears lighter becauseWater supports itUpthrust acts on itDensity decreasesAir pushes it upQuestion 4 of 205. Archimedes discovered his principle while studyingPressure of airVolume and density of a crownMotion of planetsReflection of lightQuestion 5 of 206. Upthrust depends onWeight of objectVolume of liquid displacedShape of containerType of material of objectQuestion 6 of 207. If a body floats on water, then the weight of the water displaced isEqual to the weight of the bodyGreater than the weight of the bodyLess than the weight of the bodyZeroQuestion 7 of 208. If a body sinks in water, thenWeight of liquid displaced < Weight of bodyWeight of liquid displaced > Weight of bodyBoth are equalNoneQuestion 8 of 209. The unit of upthrust is same as that ofDensityPressureForceEnergyQuestion 9 of 2010. When a body is partially immersed, the upthrust depends onVolume submergedTotal volume of bodySurface area of liquidTemperature of liquidQuestion 10 of 2011. Archimedes’ Principle helps to findWeight of a bodyDensity of irregular solidVolume of gasSpeed of liquid flowQuestion 11 of 2012. If an iron nail sinks and a wooden block floats, it is becauseIron is heavier than waterDensity of iron > water, density of wood < waterIron exerts more pressureWood is lighterQuestion 12 of 2013. When an object floats, the buoyant force is equal toWeight of the objectVolume of the objectDensity of the liquidPressure of the liquidQuestion 13 of 2014. A stone appears lighter in water becauseDensity decreasesUpthrust acts upwardFriction increasesStone absorbs waterQuestion 14 of 2015. Archimedes’ Principle can be used in designingElectric circuitsHydraulic brakesShips and submarinesMirrors and lensesQuestion 15 of 2016. If the weight of the fluid displaced is equal to the body’s weight, the body willSinkFloatRiseFall rapidlyQuestion 16 of 2017. The magnitude of buoyant force increases withDecrease in fluid densityIncrease in volume displacedDecrease in submerged volumeShape of containerQuestion 17 of 2018. Archimedes’ Principle is applicable toSolids onlyLiquids and gasesGases onlyNoneQuestion 18 of 2019. In a denser liquid, the upthrust on the same object will beLessEqualMoreZeroQuestion 19 of 2020. The apparent loss in weight of a body when immersed in water is equal toVolume of water displacedUpthrustActual weight of bodyDensity of bodyQuestion 20 of 20 Loading...
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