Physics -Magnetism Flashcards
1
Q
Where on the magnets are the magnetic forces the strongest?
A
The poles
2
Q
What is the definition of a magnetic field?
A
A region around a magnetic material or a moving electric charge within which the force of magnetism acts.
3
Q
What happens when two like poles get close to each other?
A
They repel each other.
4
Q
What happens when two opposite poles get close to each other
A
They attract each other.
5
Q
What is a permanent magnet?
A
A magnet that retains its magnetic properties in the absence of an inducing field or current.
6
Q
Give three examples of of metals that are magnetic?
A
Iron, steel, cobalt
7
Q
Is a magnetic force a contact or non-contact one?
A
Non-contact
8
Q
What is an induced magnet?
A
A magnet that becomes magnetic when it is placed in a magnetic field.
