Determination of Density of Solid
 1) If the mass of solid body is doubled, its density: Becomes twice Becomes half Does not change Becomes four times

 2) Relatively density is same as: Ratio of mass of a given volume of the substance to the mass of same volume of water at 4°C. Ratio between density of substance and density of water. Specific gravity. All of these.

 3) Which one of the following liquids has the highest density? Water Mercury Alcohol Kerosene

 4) How is the density of a substance calculated? p = M x V p = M/V p = V/M p = 1/M x V

 5) Mass of a body is defined as: The force with which a body is attracted towards the center of earth. The quantity of matter contained in the body. Force acting on a body divided by velocity produced in the body. None of these.

 6) What is the relative density of water? 100 1000 10 1

 7) Relative density of a substance depends upon: Mass of the substance. Volume of the substance. Shape of the substance. Material of the substance.

 8) Which one is the correct statement? Mass is a vector quantity Mass=Force x acceleration Mass is a scalar quantity Mass=weight x acceleration due to gravity

 9) What does the spring balance measure? Weight of the body. Mass of the body. Difference between weight and mass of body. Difference between weight of spring and the body.

 10) What is the extension in the length of spring is proportional to? Weight of the body attached. Mass of the body. Volume of the body attached. Surface area of the body attached.

 11) A small packet of substance whose relative density is more than that of water is thrown in water. It will __________. submerge float sink partially immerse

 12) What force/forces act on a body immersed in a liquid? Upthrust Weight Mass Upthrust and weight

 13) The mass of a solid iron cube of side 4 cm is to be determined. Out of the four spring balances available, the one best suitable for this purpose would have what range? Density of iron is 7.8 g/cc. Range = 0 to 100 g, and least count = 1g Range = 0 to 100 g, and least count = 5g Range = 0 to 1000 g, and least count = 10g Range = 0 to 100 g, and least count = 25g

 14) A body is just floating on the surface of a liquid. Density of the body is same as that of the liquid. The body is slightly pushed down. What will the body do? Sink. Oscillate about its mean position. Float inside the surface of a liquid. Remain floating on the surface of a liquid.

 15) A student is performing the experiment 'To determine the density of solid (denser than water), by using spring balance and measuring cylinder'. During the experiment, he observed that a few air bubbles were sticking to the solid when immersed in water. What will the presence of air bubbles lead to? No change in density. Increase in density. Decrease in density. None of these.

 16) You are given solid cubes of Aluminium and Iron, each of side 4 cm and two spring balances. Balance A has a range of 0 to 250 g and a least count of 2.5 g, while balance B has a range of 0 to 1000 g and a least count of 10g. Which balance would be the preferred option for mass measurement of the cubes? Balance A for both the cubes. Balance B for both the cubes. Balance A for the Aluminium cube and balance B for Iron cube. Balance A for the iron cube and balance B for aluminium cube.

 17) A spring balance read 10 kg, when a bucket of water was suspended from it. What will be the reading of the spring balance when an ice cube of mass 1.5g is put into the bucket? 11.5 kg 8.5 kg 10 kg 1.5 kg

 18) A spring balance read 10 kg when a bucket of water was suspended from it. An iron piece having some mass is suspended by another string and immersed in the bucket with half of its volume. What will the reading of balance be? Decrease Increase Remains the same Another spring balance needed

 19) When a body is floating in a liquid, then weight of the body is balanced by the upward thrust of liquid on the body. Due to this, the apparent weight of the body in the liquid is equal to? Weight of liquid displaced by the body. Zero. Weight of body outside the liquid. Sum of the weight of liquid displaced and weight of body.

 20) A body will float only when its density is: Less than that of liquid. Twice than that of liquid. Equal to that of liquid. Thrice than that of liquid.

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