lodestone
DESCRIPTION
Lodestone. What is a natural magnet?. DAILY DOUBLE You can see and feel its effects, but it is actually invisible. What is the magnetic field?. It is a giant magnet. What is the earth? . It has a small magnet in the needle that points it towards magnetic north. What is a compass? . - PowerPoint PPT PresentationTRANSCRIPT
Vocabulary True or False
Is it magnetic?
Fill in The Blank
Magnet Mix Up
100 100 100 100 100
200 200 200 200 200
300 300 300 300 300
400 400 400 400 400
500 500 500 500 500
Lodestone
What is a natural magnet?
DAILY DOUBLE
You can see and feel its effects, but it is actually
invisible.
What is the magnetic field?
It is a giant magnet.
What is the earth?
It has a small magnet in the needle that points it towards magnetic north.
What is a compass?
This and magnetism are similar to one another.
What is electricity?
All magnets have the same strength.
False. The strength of magnets vary.
Unlike poles on a magnet attract.
True. Unlike poles attract to one another.
DAILY DOUBLE
Magnets attract to pennies.
DAILY DOUBLE
False. Pennies do not contain the metal that attracts to magnets.
Lodestone is a temporary magnet.
False. Lodestone is a permanent magnet.
A south pole on a magnet will attract to another
south pole on a different magnet.
False. Two similar poles don’t attract.
Glass
Not magnetic
A magnet
Definitely magnetic
Iron
Definitely magnetic
DAILY DOUBLE
Gold
DAILY DOUBLE
Not magnetic
Plastic
Not magnetic
The strength of a magnet can ___________.
Vary
Electricity and ______________ are
similar.
Magnetism
The north pole of a magnet will attract to the
___________________ of another magnet.
South Pole
DAILY DOUBLE
Magnetic _________ can go through many
materials.
DAILY DOUBLE
Force
The attraction between two magnets decreases as the distance between them _____________.
increases
Why does it take more washers to separate two magnets with no spacers in between them, than it
does with 4 spacers?
Because the magnetic force field is not being interrupted or broken
when there are no spacers.
DAILY DOUBLE
Suppose you hold 2 magnets over 2 different nails. One attracts to the
magnet, and the other one doesn’t~ Why?
The nail that doesn’t attract is not made with a
metal that attracts to a magnet.
Name the 3 metals magnets attract to
Iron, Nickel, and Cobalt
Suppose you’re holding 2 magnets and you try to stick them together, but they are repelling. Why
would they do this?
They would only repel if you were attempting to
have 2 of the same poles attract.
Where is a magnet’s force field the strongest?
At its poles
Why does it take more washers to separate two
magnets with no spacers in between them, than it does
with 4 spacers?
Because the magnetic force field is not being interrupted or broken
when there are no spacers.
DAILY DOUBLE
Suppose you hold 2 magnets over 2 different nails. One attracts to the
magnet, and the other one doesn’t~ Why?
They would only repel if you were attempting to
have 2 of the same poles attract.
Name the 3 metals magnets attract to
Iron, Nickel, and Cobalt
.
Suppose you’re holding 2 magnets and you try to stick them together, but they are repelling. Why
would they do this?
They would only repel if you were attempting to
have 2 of the same poles attract.
Where is a magnet’s force field the strongest?
At its poles