Verification of Archimedes' Principle
 1) What is the upthrust exerted by water on the immersing body known as? Weight Buoyant force Volume Density

 2) Name the principle which says that weight of liquid displaced and upthrust are equal. Pascal’s Newton’s Joule’s Archimede’s

 3) If the density of a body is greater than the density of the liquid, what will the weight of body be? Equal to upthrust. Less than upthrust. Greater than upthrust. Equal to or less than upthrust

 4) If the densities of immersed body and liquid are equal, then which of the following statement is correct Weight = upthrust Weight > upthrust None of these.

 5) What will the body do if the density of immersed body is equal to the density of liquid? Float on the free surface of liquid. Sink. Float partially immersed. Float and remain suspended within the liquid.

 6) Any body fully or partially submerged in a fluid is Archimedes principle Pascal’s law Buoyancy Laws of flotation

 7) Why does a body undergo a loss in weight when immersed in a liquid? Liquid exerts an upward force. Force of gravity. All of these None of these

 8) Why does one feel that it is easier to lift a heavy body in water? Body will experience an upthrust equal to volume of water displaced by it. Body will experience an upthrust equal to weight of water displaced by it. Weight of a body decreased in water. None of these

 9) What does the force of buoyancy depend on? Mass of liquid displaced. Depth to which a body is immersed. Shape of the body. Mass of the body.

 10) What does upthrust depend on? Mass of the immersed body. Density of liquid. Volume of the immersed body. Density of liquid and Volume of the immersed body.

 11) What does buoyant force depend on? Level of liquid increases in measuring cylinder. Gravitational acceleration. Density of Liquid. All of these.

 12) What are the forces acting on a body when it is immersed in a liquid? Upthrust Mass Weight Upthrust and Weight

 13) The loss in weight of a fully immersed body is more in _______. salt water tap water alcohol kerosene oil

 14) If a particular solid body is immersed in two different liquids with different densities, then weight of the displaced liquid will be? Less in the denser liquid. Equal in the denser liquid. More in the denser liquid with different volume displaced. More in the denser liquid with same volume displaced.

 15) A student noted down following observations in his note book. (1) Weight of the stone in air = 272 g wt (2) Weight of the stone in water = 192 g wt (3) Weight of the stone in salty water = 176 g wt. The relatively density of the salty water must be: 11/12 11/17 13/17 6/5

 16) Which of the following statements is true in the case of law of floatation? Weight of the floating body is equal to the weight of fluid displaced. The centre of gravity of the floating body and the centre of buoyancy act along the same vertical line. If the floating body is of non uniform density, then the centres of gravity and buoyancy do not coincide. All of these.

 17) What are the applications of the Archimedes Principle? To determine the relative densities of solids and liquids. To find out the purities of substances, especially of costly substances like gold without harming the item. In designing ships and submarines. All of these.

 18) The density of tap water is less than that of sea water. If an object is immersed completely in both one by one, what will its loss in weight be? More in sea water. Less in sea water. Equal in the two cases. Zero in sea water but not so in tap water.

 19) When does the maximum loss in weight of a body take place? When it is completely immersed in a liquid. When it is partially immersed in a liquid. When it just touches the surface of liquid. When it is sinking in a liquid.

 20) When should the reading on a spring balance be taken? When it oscillates up and down. When it oscillates to and fro. When it attains the static position. When it falls from the rigid support.

 21) In the experiment to establish the relation between loss in weight of an immersed solid body with the weight of water displaced by it, a student starts lowering the solid body gradually in water in water, he observe that the reading of the spring balance ………….. It decreases as the solid body is gradually lowered in water. It increases as the solid body is gradually lowered in water. It does not change. It first decreases then increases.

 22) The instruments based on Archimede's principle is/are? Lactometer Hydrometer All of these None of these

 23) In an experiment to establish the relationship between loss in weight of solid when immersed fully in given liquid with the weight of water displaced by it, what does the volume of the displaced water give us? Volume of the object. Mass of the object. Weight of the object. All of these.

24)In the experiment to establish the relation between loss in weight of an immersed solid with the weight of water displaced by it, the correct setup is shown in which diagram?

25)Identify the diagram showing correct position of ice cubes when put in water.

26)Which is the best set-up for the experiment for measuring the loss of weight of a body immersed in a liquid?

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