Buoyant force Archimedes' Principle

What does Archimedes' Principle state?

• An object in motion stays in motion

• An object immersed in a fluid experiences an upward force equal to the weight of the displaced fluid

• Pressure is force per unit area

• The denser an object, the faster it sinks

What is the upward force exerted by a fluid on an object called?

• Gravity

• Pressure

• Buoyant force

• Surface tension

Which of the following best describes displacement in Archimedes’ Principle?

• The movement of an object in water

• The volume of fluid pushed aside when an object is immersed

• The force that pulls an object downward

• The speed at which an object sinks

Why does a person feel lighter while swimming in water compared to standing on land?

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A ship made of iron floats on water, but a small iron nail sinks. Explain this phenomenon using Archimedes' Principle.

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When a fully inflated balloon is pressed underwater and then released, it quickly rises to the surface. Explain why this happens.

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