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What is buoyancy?
Buoyancy is the upward force experienced by an object submerged in a fluid, which makes it appear lighter.
What factors affect buoyancy?
Buoyancy depends on the object's volume, the density of the fluid, and gravity.
What is Archimedes' Principle?
Archimedes' Principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.
How is thrust produced?
Thrust is produced by the expulsion of mass, according to Newton's third law of motion, where for every action there is an equal and opposite reaction.
What is the relationship between pressure and depth in a fluid?
Pressure increases with depth in a fluid, due to the weight of the fluid above the point being measured.
What unit is pressure measured in?
Pressure is commonly measured in pascals (Pa) or in atmospheres (atm).
What is the formula for calculating pressure?
Pressure (P) is calculated using the formula: P = F/A, where F is the force applied and A is the area over which the force is distributed.
What role does fluid density play in buoyancy?
An object's buoyancy increases if it is placed in a fluid with a lower density than itself, and decreases in higher density fluids.
What happens to objects with density less than water?
Objects with density less than water will float due to the upward buoyant force exceeding their weight.
How does pressure affect object behavior underwater?
Underwater, increased pressure can compress objects, affecting their volume and density, and influencing buoyancy.