Archimedes' Principle: Definition, Formula & Examples


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question 1 of 3

Archimedes' principle states that the buoyant force on an object is equal to ______.

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1. A hot air balloon works based on Archimedes' principle. If the weight of an entire hot air balloon is 2,227 newtons, then the hot air in the balloon needs to be at least that much lighter than the cool air outside the balloon for it to float. Let's say the balloon is a sphere with a radius of nine meters, and the density of air (at standard temperature and pressure) is 1.2754 kg/m3. What should the weight of the air in the balloon be for it to fly upward?

2. How does the phrase 'just the tip of the iceberg' represent Archimedes' principle?

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About This Quiz & Worksheet

These interactive learning assessments will give you practice answering questions about buoyancy and Archimedes' Principle using real-world example problems. You'll answer questions that conceptualize buoyancy in an easy-to-understand way.

Quiz & Worksheet Goals

This quiz and worksheet will quiz you on:

  • The definition of Archimedes' Principle
  • Why people can float more easily in the Dead Sea
  • How the phrase 'tip of the iceberg' relates to Archimedes' Principle
  • Why hot air balloons can rise and submarines can submerge

Skills Practiced

This quiz and worksheet will test you on the following skills:

  • Defining key concepts - define and understand Archimedes' Principle
  • Reading comprehension - draw the most important information from the related lesson on Archimedes' Principle
  • Problem solving - use your acquired knowledge to solve buoyancy practice problems

Additional Learning

To learn more about Archimedes' Principle, watch the accompanying lesson on Archimedes' Principle. The lesson covers the following concepts:

  • Identify the key principles behind Archimedes' Principle
  • Perform calculations to find the volume of an object in water
  • Look at real-world examples that demonstrate buoyancy principles
  • Define and understand displacement and its relation to buoyancy