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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.

The density of oxygen at room temperature is about 1.3 kg/m3. Therefore, its density in g/cm3 is

  0.0013

  1300

  0.013

  130

  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?

  Liquid L1 has a lower density than liquid L2.

  Liquid L1 has a higher density than liquid L2.

  No definite conclusion can be made about the liquid densities.

  Liquids L1 and L2 have the same density.

  Half-n-half Clue
 

3.

A metal body of mass 135 g occupies a volume of 50 cm3. Identify the metal.

  Lead with density = 11.4 g/cm3

  Iron with density = 7.9 g/cm3

  Tungsten with density = 19.4 g/cm3

  Aluminum with density = 2.7 g/cm3

  Half-n-half Clue
 

4.

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

  108.8 g

  1 g

  108800 g

  None of these

  Half-n-half Clue
 

5.

Density is defined as

  mass × acceleration

  mass × volume

  volume / mass

  mass / volume

  Half-n-half Clue
 

6.

The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 3.6 kg of carbon dioxide is

  2 m3

  0.5 m3

  6.5 m3

  None of these

  Half-n-half Clue
 

7.

Water has the maximum density at

  4oC

  0oC

  -4oC

  40oC

  Half-n-half Clue
 


 
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