Physics-Magnetism Flashcards
To learn about magnetism
Define
Magnet
An object that attracts magnetic object/ repels other magnets
Define
Magnetic
An object which can be attracted by magnets
Define
Ferrous metals
A metal which is always magnetic in any state.They can aslo become permanent magnets
What are the three permanent magnet types:
- Natural:Magnets that occur in nature
- Artifical:Magnets, humans artifically made, via induction
- Celestial:Celestial bodies with a magnet field due to their core.Protects the celestial body from radiation.
List
The only three magnetic/ferrous elements
- Iron
- Colbalt
- Nickel
List
The only naturally occuring magnetic compound
Lodestone
List
The most manurfactured magnetic ferrous metal on earth
Steel
List
The largest magnet on Earth
The Earth itself
Define
Induction
When a magnetic metal becomes a magnet , via the seperation of electrons from the protons.This makes an induced magnet which will last a sort period
Define
Permanent magnet
A magnet in which the electrons will stay seperated, even after their induction.They can only happen on ferrous metals, and can be demagnetised , only with huge force.
Define
Magnetic field
The area of influence around a magnet
What are the manget rules?
- Opposite attract
- Like repel
Define
Electromagnet
A type of magnet that produces a magnetic field when an electric current is passed through it.
