Buoyancy, Upthrust, and Floatation Quiz

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What is the upward force exerted by a liquid on an object immersed in it called?

Weight force

Buoyant force (correct)

Tension force

Frictional force

When FB > W, what will happen to a body in a fluid?

It will float with no part submerged

It will float with a part submerged (correct)

It will completely sink

It will remain stationary

What is the condition for a body to completely float in a fluid?

FB = W (correct)

FB < W

FB > W

No specific condition

What happens if the upthrust is less than the weight of a body immersed in a fluid?

The body will sink Signup and view all the answers

Where does the upthrust act on the body immersed in fluid?

Upwards at the centre of gravity of the displaced fluid Signup and view all the answers

What characteristic property affects the upthrust exerted by a fluid on a submerged body?

Volume of the body submerged in fluid Signup and view all the answers

According to Archimedes’ principle, when an object is immersed wholly or partially in a fluid, it experiences an upthrust which is equal to the:

Weight of the fluid displaced by it Signup and view all the answers

In the context of Archimedes’ principle, which statement about gases is true?

Gases exert a negligible buoyant force on objects. Signup and view all the answers

In Experiment 1 for verifying Archimedes’ principle, what conclusion can be drawn when the solid cylinder A loses weight after being immersed in water?

The buoyant force acting on cylinder A is equal to the weight of water displaced by it. Signup and view all the answers

What is the SI unit of density?

kg m−3 Signup and view all the answers

Which quantity is represented by the Greek letter ρ?

Density Signup and view all the answers

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

It decreases Signup and view all the answers

What is the relative density of a substance defined as?

Mass per unit volume Signup and view all the answers

What does the pressure at a point in a liquid do?

Decreases with increase in depth Signup and view all the answers

What force is created on a block immersed in liquid due to pressure difference between the lower and upper faces?

Net upward force Signup and view all the answers

What does Archimedes’ principle state about the buoyant force acting on an object?

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

Buoyancy, Upthrust, and Floatation Quiz

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