What is the upward force acting on an immersed body called?

Upthrust or buoyant force

True or False: A body floats when its weight is greater than the upthrust.

False. A body floats when its weight is equal to the upthrust.

Riddle: I can lift heavy objects without effort, yet I am invisible and depend on the fluid I am in. What am I?

Buoyant force

For a body to float, the condition that must be satisfied is ______.

Weight (W) equals upthrust (FB)

Which of the following materials will sink in water? A) Cork B) Iron C) Wood D) Plastic

B) Iron

True or False: Upthrust is always equal to the weight of the body immersed in a fluid.

False. Upthrust is equal to the weight of the fluid displaced by the body.

What happens to a helium-filled balloon as it rises in the atmosphere?

It rises until the upthrust equals its weight.

The principle that states a body immersed in fluid experiences an upthrust equal to the weight of the fluid displaced is known as ______.

Archimedes' Principle

If the density of a solid is less than the density of the liquid, it will ______.

Float partially submerged

Which of the following factors does NOT affect the upthrust on a submerged body? A) Volume of the submerged body B) Density of the fluid C) Temperature of the fluid D) Shape of the body

C) Temperature of the fluid

Riddle: I am a liquid that can float, yet I am made of ice. What am I?

Iceberg

The weight of water displaced by a submerged object equals the upthrust acting on that object. This statement is an application of ______.

Archimedes' Principle

True or False: A fish uses its swim bladder to control its density in water.

True

If the relative density of a substance is 0.5, it means the substance is ______ than water.

Lighter

What is the unit of upthrust?

Newton (N) or kgf

If a solid weighs 100 gf in air and 80 gf in water, the upthrust is ______.

20 gf

Which of the following will have a higher upthrust when submerged? A) A cork in water B) A cork in glycerine

B) A cork in glycerine

Riddle: I am the reason ships float and can be seen in the behavior of balloons. What am I?

Buoyancy

What is the upward force acting on a body submerged in a fluid called?

Upthrust or buoyant force