P7: MAGNETS + MAGNETIC FIELDS Flashcards
1
Q
What is a magnetic field?
A
a region where other magnets/magnetic materials experience a force (non-contact)
2
Q
What are 3 magnetic materials?
A
-iron
-cobalt
-nickel
3
Q
What direction do field lines always point in?
A
away from north towards south
4
Q
What does it mean when the magnetic field lines are closer together?
A
the magnetic field is strongest
5
Q
What poles attract?
A
opposite poles attract
6
Q
What poles repel?
A
like poles repel
7
Q
What is a permanent magnet?
A
a magnet produces its own magnetic field
8
Q
What is an induced magnet?
A
a material that becomes a magnet when it is placed in a magnetic field
