All About Magnets!

Bella A

Different types of magnets


  • What is magnetism?


The properties of attraction possessed by magnets; the molecular properties common to magnets.


  • What are magnets?


A body, as a piece of iron or steel, that possesses the property of attracting certain substances, as iron.


  • What are temporary magnets?


Temporary magnets are those which act like a permanent magnet when they are within a strong magnetic field, but lose their magnetism when the magnetic field disappears. Examples would be paperclips and nails and other soft iron items.


  • What are permanent magnets?


A magnet that retains its magnetic properties in the absence of an inducing field or current.


  • What are electromagnets?


A device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it.

  • What are superconductors?

A superconducting magnet is an electromagnet made from coils of superconducting wire
  • What is a magnetic field



  1. a region around a magnetic material or a moving electric charge within which the force of magnetism acts.




Facts

  • Who discovered magnets?


Greeks discovered naturally occurring magnets of magnetite in Turkey.



  • Name four facts about magnets. 1. North poles point north, south poles point south.2. Like poles repel, unlike poles attract. 3. Magnetic forces attract only magnetic materials. 4. Magnetic forces act at a distance. 5. While magnetized, temporary magnets act like permanent magnets.
  • Name five other planets that have magnetic fields.


Mercury, Jupiter, Saturn, Uranus, and Neptune.


  • Name four facts about magnets.


1. North poles point north, south poles point south.2. Like poles repel, unlike poles attract. 3. Magnetic forces attract only magnetic materials. 4. Magnetic forces act at a distance. 5. While magnetized, temporary magnets act like permanent magnets.


  • Name five other planets that have magnetic fields.


Mercury, Jupiter, Saturn, Uranus, and Neptune.

  • 10 uses of magnets and why they are useful

1.They are used to construct the electrical motors and the generators which convert the electrical energy into mechanical energy and vice verse.2.They are also used in the speakers which can convert the electrical energy into sound energy.3.They are used in the electrical bells.4.They are used in the Maglev trains. In the Maglev trains, the super conducting magnets are used on the tracks on which the train floats. These types of the trains are working on the repulsion force of the magnets.5.They are also used to sort out the magnetic and non magnetic substances from the scrap.6.They are used in TV screens, computer screens, telephones and in tape recorders.7.They are used by the candy or cold drink vendors to separate the metallic cap from the lots.8.They are used in cranes.9.They are used in the refrigerators to keep the door close.10.The most important use of the magnet is the magnetic compass which is used to find the geographical directions.

Pictures of magnets