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Physics Quiz : Density


Answer the following questions based on density.

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Multiple choice

Your Performance  

1.

Density is defined as

  mass × volume

  volume / mass

  mass / volume

  mass × acceleration

  Half-n-half Clue
 

2.

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.

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

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

  Half-n-half Clue
 

3.

Hot air is less dense than cold air.

  True

  False

 

4.

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 doubled.

  The mass is doubled.

  The density is halved.

  Half-n-half Clue
 

5.

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

  True

  False

 

6.

A metal body of mass 81 g occupies a volume of 30 cm3. Identify the metal.

  Iron with density = 7.9 g/cm3

  Tungsten with density = 19.4 g/cm3

  Lead with density = 11.4 g/cm3

  Aluminum with density = 2.7 g/cm3

  Half-n-half Clue
 

7.

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

  1300

  0.0013

  0.013

  130

  Half-n-half Clue
 

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