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Physics Quiz : Density


Answer the following questions based on density.

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Multiple choice

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1.

One kg of air is compressed from 1 m3 to 0.5 m3. Which of the following statements is true?

  The density is halved.

  The mass is halved.

  The density is doubled.

  The mass is doubled.

  Half-n-half Clue
 

2.

An object floats in liquid L1, but it sinks to the bottom in liquid L2. Which statement of the following is true?

  No definite conclusion can be made about the liquid densities.

  Liquid L1 has a lower density than liquid L2.

  Liquid L1 has a higher density than liquid L2.

  Liquids L1 and L2 have the same density.

  Half-n-half Clue
 

3.

The density of water is about 100 kg/m3 at room temperature.

  True

  False

 

4.

Water has the maximum density at

  40oC

  0oC

  -4oC

  4oC

  Half-n-half Clue
 

5.

Hot air is less dense than cold air.

  True

  False

 

6.

The density of mercury is 13.6 g/cm3. So, the mass of 8 cm3 of mercury is

  None of these

  1 g

  108.8 g

  108800 g

  Half-n-half Clue
 

7.

Density is defined as

  mass / volume

  mass × volume

  mass × acceleration

  volume / mass

  Half-n-half Clue
 

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