Physics Quiz: Physical Quantities and Measurement

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What is the density of water in SI units?

1200 kg/m³

1000 kg/m³ (correct)

500 kg/m³

800 kg/m³

What is the main function of a hydrometer?

To measure the weight of a liquid

To measure the density of a liquid (correct)

To measure the mass of a liquid

To measure the volume of a liquid

What is the relationship between the mass and volume of a body?

The mass of a body is directly proportional to its volume

The greater the mass of a body, the smaller is its volume

The greater the mass of a body, the greater is its volume

The mass of a body is inversely proportional to its volume (correct)

What is the density of a substance with a relative density of less than 1?

Less than the density of water Signup and view all the answers

What is the main reason why a hydrometer floats vertically in a liquid?

Because of its weighted bulb Signup and view all the answers

What is the purpose of sealing one end of a drinking straw in the given experiment?

To prevent the liquid from entering the straw Signup and view all the answers

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 Signup and view all the answers

What is the purpose of marking the level up to which the straw sinks in water?

To create a reference point for the hydrometer Signup and view all the answers

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 Signup and view all the answers

What is the main principle behind the functioning of the homemade hydrometer?

Archimedes' principle of buoyancy Signup and view all the answers

Physics Quiz: Physical Quantities and Measurement

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Questions and Answers

What is the density of water in SI units?

What is the main function of a hydrometer?

What is the relationship between the mass and volume of a body?

What is the density of a substance with a relative density of less than 1?

What is the main reason why a hydrometer floats vertically in a liquid?

What is the purpose of sealing one end of a drinking straw in the given experiment?

What can be observed when the hydrometer is placed in a concentrated solution of common salt?

What is the purpose of marking the level up to which the straw sinks in water?

What would happen if the hydrometer is placed in milk mixed with water?

What is the main principle behind the functioning of the homemade hydrometer?

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