P4.1.1 - Magnets and magnetic fields Flashcards
1
Q
What is a magnet?
A
Any object that has a magnetic field around it
2
Q
What are the 2 poles of a magnet?
A
The north pole and the south pole
3
Q
The closer the field lines in a magnet…
A
the stronger the magnet
4
Q
What is a permanent magnet?
A
A magnet which always has a magnetic field around it
5
Q
How can you show the shape of the magnetic fields?
A
By using iron filings
6
Q
When do non-magnets induced in them?
A
When a the permanent magnet it brought close to it
7
Q
Does the Earth have a magnetic field?
A
Yes
8
Q
What the similarities between the Earth’s magnetic and gravitational field?
A
- They are both non-contact forces
- Gravitational is only attractive but Magnetic is attractive and gravitational
9
Q
How do you know that the magnetic field of a magnet is stronger near the poles?
A
Because the field lines are closer together
