1 / 17

Magnets

Magnets. Investigation 1 Review. Stuck on Magnets. Magnets stick to some metals, but not all metals. Magnets stick only to items that are steel or iron. Magnets do not stick to aluminum. . Forces: Attract and Repel.

davin
Download Presentation

Magnets

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Magnets Investigation 1 Review

  2. Stuck on Magnets • Magnets stick to some metals, but not all metals. • Magnets stick only to items that are steel or iron. • Magnets do not stick to aluminum.

  3. Forces: Attract and Repel Opposite poles of a magnet attract, or pull together, as seen in the top magnets in the picture. Like poles of a magnet repel, or push apart, such as the magnets at the bottom of the picture.

  4. Magnetic Detectors • Compasses can be used as detectors because the needle of the compass will always point toward the magnet’s force. • Other good detectors are iron filings, metal screens, and paper clips.

  5. Induced Magnetism • When magnetic force travels from a magnet through a metal item, the metal item can become a temporary magnet as long as it continues to touch the magnet. • The nail below is a temporary magnet.

  6. Breaking the Force • As the distance between two magnets increases, the force of magnetism decreases, and it is easier to break the force. • The force is much stronger when the magnets are close together.

  7. Time for a QUIZ! • Which of these items will NOT stick to a magnet? • Steel nail • Paper clip • Aluminum foil • Penny • A and B • C and D

  8. FA magnet does not stick to materials that don’t have steel or iron in them, such as a penny or aluminum foil.

  9. If two magnets are placed end to end with the same poles touching…. • The magnets will attract. • The magnets will repel.

  10. BLike poles will repel each other.

  11. Which of these items would NOT be a good detector? • Penny • Compass • Iron Filings • Paper Clip

  12. AA penny does not have iron or steel in it, so it could not detect a magnet.

  13. Why does the paper clip stick to the nail? • Force of Repulsion • Force of Attraction • Magnetic Field • Induced Magnetism

  14. DInduced magnetism can create temporary magnets from items with steel or iron, as long as the item remains in contact with the magnet.

  15. Breaking the Force • What happens to the force of magnetism as the distance between two magnets increases? • The force gets stronger. • The force gets weaker. • Nothing happens to the force.

  16. BThe force is weaker when there is a greater distance between the magnets.

  17. May the “force” be with you. 

More Related