JAMB and WAEC Physics questions: Liquids at rest

24 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Liquids at rest· JAMB

   An object floats in a liquid when:

   • Aits density is greater than that of the liquid
   • Bthe upthrust equals its weight
   • Cthe upthrust is less than its weight
   • Dits volume is small

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   Explanation and discussion

2. Question 22· Liquids at rest· JAMB

   A density bottle has a mass of 20 g empty, 70 g full of water and 60 g full of a liquid. Find the relative density of the liquid.

   • A0.86
   • B1.25
   • C0.8
   • D1.17

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   Explanation and discussion

3. Question 23· Liquids at rest· WAEC

   A hydrometer sinks deeper in a liquid that is

   • Aless dense
   • Bmore dense
   • Chotter
   • Dcoloured

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   Explanation and discussion

4. Question 24· Liquids at rest· WAEC

   By the law of flotation, a floating body displaces

   • Ahalf its weight of the fluid
   • Bits own volume of the fluid
   • Cits own weight of the fluid
   • Dmore than its own weight of the fluid

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   Explanation and discussion