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Upthrust and Buoyancy Quiz

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Questions and Answers

Which force is responsible for the tendency of a liquid to exert an upward force on any object immersed in it?

Buoyant force (correct)

Tension force

Frictional force

Weight force

Under what conditions will a body float when submerged in water?

When tension force is greater than weight

When weight is greater than buoyant force

When buoyant force is greater than or equal to weight (correct)

When frictional force is greater than buoyant force

What is the characteristic property of upthrust related to the volume of the body submerged in fluid?

Larger the volume of the body, lower the upthrust

Smaller the volume of the body, greater the upthrust

Volume of the body does not affect upthrust

Larger the volume of the body, greater the upthrust (correct)

What does the upthrust act on, in the upward direction, in a fluid?

The body's center of buoyancy Signup and view all the answers

What is the reason for upthrust in a liquid kept in a vessel?

Uniform pressure exerted by the liquid in all directions Signup and view all the answers

When will a body sink when submerged in water?

When buoyant force is less than weight Signup and view all the answers

Which principle states that when an object is immersed wholly or partially in a fluid, it experiences an upthrust equal to the weight of the fluid displaced by it?

Archimedes’ principle Signup and view all the answers

What is the SI unit of density?

kg/m^3 Signup and view all the answers

What happens to the density of a substance with a decrease in temperature?

It increases Signup and view all the answers

What does Archimedes’ principle state about the buoyant force acting on an object immersed in a fluid?

It is equal to the weight of the fluid displaced by the object Signup and view all the answers

What is the characteristic property of upthrust related to the volume of the body submerged in a fluid?

It increases with an increase in volume Signup and view all the answers

What is the relative density of a substance?

The ratio of its density to that of water Signup and view all the answers

Which law states that the pressure at a point in a liquid is the same in all directions?

Pascal's Law Signup and view all the answers

What does the density of a substance depend on?

Both its mass and volume Signup and view all the answers

What is the buoyant force acting on an object immersed in a fluid equal to?

The weight of the fluid displaced by the object Signup and view all the answers

When does a body float when submerged in water?

When its density is less than that of water Signup and view all the answers