Magnetism Mindmap
A mindmap of the Core magnet knowledge for Common entrance and Shcholarship at 13+
- Created by: Jack Salvesen
- Created on: 18-01-13 18:36
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- Magnetism Chapter 22
- Magnetic materials
- Nickel
- Iron
- Cobalt
- Attraction
- Like poles attract N+S
- Repulsion
- Like poles repulse each other N-N repulses
- Like poles attract N+S
- Attraction
- Like poles repulse each other N-N repulses
- Test for a magnet
- The only true test of a magnet is to repel it with
another magnet.
- Like poles repulse each other N-N repulses
- Repulsion
- Like poles repulse each other N-N repulses
- The only true test of a magnet is to repel it with
another magnet.
- Types of magnet
- They are Bar, Horse show, circle/spherical, electromagnet.
- Theory of making a magnet
- All methods of making a magnet work in the same way. They are trying to align the atoms in a magnetic material so that they are facing the same way. Before magnetised, atoms are in a random alignment. Once magnetized all atoms face the same way.
- How to make a magnet
- Theory of making a magnet
- All methods of making a magnet work in the same way. They are trying to align the atoms in a magnetic material so that they are facing the same way. Before magnetised, atoms are in a random alignment. Once magnetized all atoms face the same way.
- Stroke a magnetic material with a pre-made magnet for a while in the same direction. Hit the magnetic material with a hammer inside a strong magnetic field. Put the magnetic material inside a very strong magnetic field.
- Theory of making a magnet
- Core knowledge
- The shape of a magnetic field around a bar magnet Attract/repulsion Repelling only true test for a magnet Iron/Steel/Nickel/Cobalt magnetic materials Permanent and non-permanent magnets- electro magnets can be switch on and off. Compasses around a magnet North and South poles How to make a temporary magnet Magnetism works through things
- Field Lines
- We can see the field lines around a magnet using iron filings. Field lines always go from north to south poles. The poles are the strongest points of the magnets.
- Magnetic materials
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