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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 doubled.

  The density is doubled.

  The mass is halved.

  Half-n-half Clue
 

2.

Density is defined as

  mass × acceleration

  mass / volume

  mass × volume

  volume / mass

  Half-n-half Clue
 

3.

Water has the maximum density at

  -4oC

  4oC

  40oC

  0oC

  Half-n-half Clue
 

4.

The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 7.2 kg of carbon dioxide is

  0.2 m3

  13.0 m3

  4 m3

  None of these

  Half-n-half Clue
 

5.

The SI unit of density is

  g/cm3

  m3/kg

  cm3/g

  kg/m3

  Half-n-half Clue
 

6.

The fraction of an iceberg submerged below the water surface is

  4 / 5

  1 / 5

  1 / 10

  9 / 10

  Half-n-half Clue
 

7.

Which of the following statements is true?

  Water floats on oil because water is more dense than oil.

  Oil floats on water because oil is less dense than water.

  Water floats on oil because water is less dense than oil.

  Oil floats on water because oil is more dense than water.

  Half-n-half Clue
 


 
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