Magnetism
Magnets are any material that attracts ____
Metals/Iron
magnetic poles that have like ends ____
repel
magnetic field lines map out the invisible field around a _____
magnet
Without _____ there would be no electricity
magnetism
has a magnet on a needle that spins freely is a
compass
Magnetic poles are
North and south
Magnetism creates a(n) ________ between substances
attraction
magnetic field lines are close together where it is the _______
strongest
English physician and natural philosopher
William Gilbert
Magnetism is used in... List 3 daily uses
TV
Speakers
Refrigerator seal
MRI
Airpods
Store Data in computers
define magnetism
Force of attraction or repulsion between magnetic objects
all magnets have _____ ends which are called____ ____
two/magnetic poles
magnetic fields cause _____ to interact without even touching
magnets
magnetism is used in a compass for ______
navigation/directions
Two magnets of lie next to each other having the same poles creates
magnetite is a rock discovered by the ____
Greeks or by Magnes
Magnetic field lines go from
North to South
The arrows on the magnetic field lines always go from _____ to _____
north to south
are the geographic and magnetic poles in the same place? How do we know?
No, because the magnetic poles change but the geographic poles always stays the same
Freely suspended magnet’s direction
North-South direction
A magnetic rock/lodestone discovered over 4 000 years ago
Magnetite
____ ______ magnets can be made of a combination of metals made to align their atoms in the same direction
man-made/artificial
If the magnetic field line arrows are going from left to right, what does that tell you about the poles on the magnet
it tells you that the north pole is on the left and the south pole is on the right
What makes the attraction or repulsion between magnetic poles _______ _______
magnetic field
How was the magnetic effect distinct from the amber effect
the magnetic effect allowed magnetic objects to be attracted naturally whereas the amber effect you have to rub the resin to create friction