<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation
Our Terms of Use (click here to view) and Privacy Policy (click here to view) have changed. By continuing to use this site, you are agreeing to our new Terms of Use and Privacy Policy.
You are viewing an older version of this Concept. Go to the latest version.


Objects that attract certain materials such as iron and the forces associated with them.

Atoms Practice
Practice Now
World's Strongest Magnet

World's Strongest Magnet


Credit: Roo72
Source: http://commons.wikimedia.org/wiki/File:Neodymium_magnet_lifting_spheres.jpg
License: CC BY-NC 3.0

This photo shows three solid steel balls suspended by three small magnets. It’s not a trick. The tiny magnets are actually strong enough to hold the very heavy steel balls. That’s because the magnets are made of neodymium.

News You Can Use

  • Neodymium magnets, called NIB magnets for short, can support thousands of times their own weight. They have many real-world uses, ranging from jewelry clasps to medical imaging devices.
  • Sometimes NIB magnets can be too strong for their own good. They can attract metal objects so strongly that the force of the impact causes the magnets to crack. Metal objects flying toward the magnets can also injure people. In addition, the magnets have been swallowed by children, causing serious harm.
  • Watch this video demonstration of the awesome force of a large neodymium magnet. Warning: Do not try this at home! 


Show What You Know

Learn more about neodymium magnets at the links below. Then answer the questions that follow.

  1. How big is the neodymium magnet demonstrated in the video above? How much weight can it hold?
  2. What is neodymium? What other elements are in neodymium magnets?
  3. What happens to a neodymium magnet when it is heated above 176 °F?
  4. There are many industrial uses for neodymium magnets. List at least ten other uses of these magnets.

My Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Please to create your own Highlights / notes
Show More

Image Attributions

  1. [1]^ Credit: Roo72; Source: http://commons.wikimedia.org/wiki/File:Neodymium_magnet_lifting_spheres.jpg; License: CC BY-NC 3.0

Explore More

Sign in to explore more, including practice questions and solutions for Metals.
Please wait...
Please wait...