Magnetism Flashcards
1
Q
Magnetic field
A
Region around a magnet where a force will act on other magnets or on magnetic materials
2
Q
Uniform magnetic field
A
Represented by series of straight parallel field lines that are evenly spaced. Strength & direction is same everywhere
3
Q
Where does compass point & why?
A
The compass points North because it is lining up with Earth’s magnetic field
4
Q
Magnetic materials
A
Materials that are attracted to a magnet when inside its magnetic field, but do not attract or repel each other.
5
Q
Magnetically hard properties
A
Can be permanently magnetised & retain magnetism once magnetised
6
Q
Magnetically soft properties
A
Can be temporarily magnetised & lose magnetism once removed from magnetic field
7
Q
Using iron filings
A
- Use iron filings
- Place a card over the magnets
- Sprinkle iron filings evenly on card
- Tap card to distribute iron filings
8
Q
Magnetic materials (4)
A
Iron, Cobalt, Nickel, Steel
