Name: _________________________ Date: ____________ Period: _______________
Magnetism Notes
1. Magnets have been known for centuries. The Chinese and Greeks knew about the “magical”
________________ of magnets. The ancient Greeks used a stone substance called “___________.”
They discovered that the stone always pointed in the same direction. Later, stones of magnetite
called “________________” were used in _______________.
2. William Gilbert, an English physician, first proposed in ____________ that the ___________ itself
is a magnet, and he predicted that the Earth would be found to have ______________________.
3. ____________________ is the force of attraction or repulsion of a magnetic material due to the
arrangement of its ____________, particularly its _________________.
4. The _______________ of a magnet are where the magnetic effect is the _____________. These are
called “___________.” Each magnet has _____ poles – 1 __________, 1 __________.
5. Like ______________ like and Opposites ______________.
Draw pictures below
6. Poles of a magnet always come in _____________. If a magnet is cut in ___________ you will have
two magnet.
7. The ____________ where the _________________ act is called the “___________________”.
8.
 Atoms themselves have ________________ properties due to the ________ of the atom’s
___________________.
 ______________ of atoms join so that their magnetic fields are all going in the _________________.
 These areas of atoms are called “______________”.
9. When an _________________ substance is placed in a ______________, the substance can become
______________. This happens when the spinning electrons _________________________________.
10. The Earth is a ______________. It exerts magnetic forces and is surrounded by a magnetic field
that is strongest near the North and South magnetic poles.
11. Sometimes, the Earth’s magnetic poles _________. This happens every __________________
years or so. This is actually about to happen again soon.
12. We use the Earth’s magnetic field to find _________________. The needle of a compass always
__________________ the _______________ south pole. We call this direction “_______________”
(remember, _______________________).
13. When a ______________________ enters a magnetic field, an _______________ is exerted on it. If
a charged particle moves at an _____________ to a magnetic field, the magnetic force acting on it
will cause it to move in a ______________ around the magnetic field lines.
14. The ___________________ is constantly bombarding the Earth’s magnetic field. Sometimes these
______________________ penetrate that field. These particles are found in two large regions
known as the ________________________.
15. The Earth’s magnetic field extends far into space. It is called the “magnetosphere.” When the
magnetic particles from the sun, called “solar wind”, strike this magnetosphere, we see a
phenomenon called…_________________________________________________________________.