10 Questions
What is the density of water in SI units?
1000 kg/m³
What is the main function of a hydrometer?
To measure the density of a liquid
What is the relationship between the mass and volume of a body?
The mass of a body is inversely proportional to its volume
What is the density of a substance with a relative density of less than 1?
Less than the density of water
What is the main reason why a hydrometer floats vertically in a liquid?
Because of its weighted bulb
What is the purpose of sealing one end of a drinking straw in the given experiment?
To prevent the liquid from entering the straw
What can be observed when the hydrometer is placed in a concentrated solution of common salt?
The mark on the hydrometer will be above the liquid surface
What is the purpose of marking the level up to which the straw sinks in water?
To create a reference point for the hydrometer
What would happen if the hydrometer is placed in milk mixed with water?
The mark on the hydrometer will be at the same level as the liquid surface
What is the main principle behind the functioning of the homemade hydrometer?
Archimedes' principle of buoyancy
Test your understanding of physical quantities and measurement concepts, including density, relative density, volume, and weight. This quiz covers the basics of physics and is suitable for high school students.
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