Ch2 Key Concepts
___ poles attract, while ___ poles repel.
To push objects away from each other
repel
Kinetic energy is _____ increased the closer magnets are together.
exponentially
The ability to move or change
energy
True or False: Seperating a magnet perfectly in half gives you a single North and single South poles.
False
Magnets must always have a ___ pole and a South pole; the magnetic field attracts itself from ____ to ____.
North, North, South
To pull other objects together
attract
Magnets, when misaligned, show ____ and ____.
Attract(ing), Repel(ling) OR Repel(ling), Attract(ing)
to seperate or set apart
isolate
Why are magnets magnetic?
All of the subatomic electrons move in the same direction. (any answer that is close to this can work too)
Magnetic field lines act as a ____ for sceintists to more clearly see the magnetic field of a magent.
model
The ____ ___ is the area around a magnet that applies a magnetic force.
magnetic field
The closer a magnetic object is in a magnetic field to a magnet, the ____ the magnetic force is applied.
stronger
A line that connects opposite magnetic poles and represents the strength and direction of the magnetic field
Magnetic field line(s)
Magnetic North of Earth is a magnet's...
South pole
The magnetic force of a magnet is based on ____.
distance from magnet
The part of a magnet that can attract or repel other magnets
Pole(s)
Magnet systems contain more potential energy when magnetic objects move ____ a magnetic force.
against
energy that is Stored
potential energy
One of the three main metals that can be magnetic.
Iron OR Cobalt OR Nickel
BONUS CONCEPT: A magnet can express ____ energy and potential energy.
kinetic
Magnets apply a ______ ____ on magnetic objects within its magnetic field
magnetic force
BONUS CONCEPT: Magnets can demagnetize because of...
Heat OR an impact OR exposure to an electrical current
energy that is Moving
kinetic energy
What object has the strongest magnetic field known to man?
an exotic ultra rare neutron star called groj 1008-57 (it has a magnetic field over a trillion times stronger than the Earth's stars)