The principle of floatation states that an object will float if it displaces an amount of liquid equal to its ___ weight.

Own

True or False: An object will float if its density is greater than the liquid's density.

False. An object will sink if its density is greater than the liquid's density.

What is the condition necessary for an object to achieve neutral equilibrium in a liquid?

The density of the object must equal the density of the liquid.

Fill in the blank: The center of ___ is where the upthrust acts on a submerged body.

Buoyancy

Explain how a hot air balloon achieves floatation.

A hot air balloon floats due to buoyancy.

• Hot air is less dense.

• Buoyant force lifts the balloon.

• Temperature difference creates lift.

Fill in the blanks: For an object to float, its average density must be ___ than the fluid's average density.

Less

True or False: The upthrust exerted by a liquid is independent of the object's submerged volume.

False. The upthrust increases with the volume of the submerged body.

What role does the design of ships play in their ability to float despite being made of dense materials?

Ships are designed to be hollow, which reduces their average density and allows them to displace a large amount of water, enabling them to float.

Fill in the blank: The laws of floatation indicate that an object will float if its density is ___ or equal to that of the liquid.

Less

Explain the significance of Archimedes' Principle in the context of floatation.

Archimedes' Principle aids floatation.

• Defines buoyant force concept.

• Determines floating or sinking.

• Crucial for ship design.