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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 water at room temperature is about

  1 g/cm3

  0.01 g/cm3

  10 g/cm3

  0.1 g/cm3

  Half-n-half Clue
 

2.

Which of the following statements is true?

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

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

  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
 

3.

The density of air is about 1 g/cm3 at room temperature and atmospheric pressure.

  True

  False

 

4.

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

  0.0013

  130

  1300

  0.013

  Half-n-half Clue
 

5.

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

  The mass is halved.

  The density is halved.

  The density is doubled.

  The mass is doubled.

  Half-n-half Clue
 

6.

The density of mercury is 13.6 g/cm3. So, the mass of 7 cm3 of mercury is

  95200 g

  None of these

  1 g

  95.2 g

  Half-n-half Clue
 

7.

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

  13.0 m3

  0.2 m3

  None of these

  4 m3

  Half-n-half Clue
 


 
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