Magnets Flashcards
How many many poles are there on a magnet?
Two
What are the poles called?
North and south
What are the four magnetic materials?
Iron, nickel, cobalt, steel
What are the 2 most common magnet shapes?
Bar and horseshoe
What metals are not magnetic?
Copper and aluminium
What are the names of the forces you can feel with magnets?
Attraction and repulsion
Do north and north attract?
No! They repel
Do north and south attract?
Yes
What would happen if you hung a magnet over an iron block on scales?
It would weigh less
How can you make a compass?
By hanging a magnet on a string
What is a magnetic field?
A field around a magnet
On a magnetic field, what does lines far apart mean?
The field is weak
On a magnetic field, what does lines close together mean?
A strong field
How can you see a magnetic field?
By putting a magnet under paper and then sprinkling iron filings on it
What happens to the north and south poles every few million years?
They swap
