Gap in knowledge - Magnetism Flashcards
1
Q
What are Ferro-magnetic materials?
A
Readily supports magnetic field and becomes strongly magnetized.
- Iron, steel, cobalt, Nickel
2
Q
What are Para-magnetic materials?
A
Becomes weakly magnetized
- Air, platinum, aluminium
3
Q
What are Dia-magnetic materials?
A
Becomes weakly magnetized, but in the opposite direction
- Copper, zinc, tin, lead
- DIA = OPPOSITE
4
Q
What type of magnets does soft iron make?
A
Temporary magnet
5
Q
How can a material be de-magnetized?
A
- Adding heat
- Striking material
- Subject to strong opposing charge
