|
Home > Preview
The flashcards below were created by user
Anonymous
on FreezingBlue Flashcards.
-
Magnetite
the mineral in rocks that is magnetic
-
What causes an aurora?
- Particles from the solar wind penetrate Earths surface
- The particles follow earths magnetic field to the magnetic poles.
- When particles get close to the surface, they then interact with atoms in the Earths atmosphere.
- The interaction causes the atoms to give off glowing lights.
-
magnetic declination number 1
Streams of electrically charged particles flowing at high speeds from the sun
-
magnetic declination number 2
the angle between geographic north and north to which a compass needle points
-
neodymium magnets
the strong magnetic force between the two neodymium magnets in the base and the top make it float in air
-
electron spin
a spinning electron produces a magnetic field that makes the electron behave like a tiny magnet in an atom
-
powerful magnets
made of alloys of platinum and cobalt; and alloys of cobalt and neodymium
-
magnetic pole
any magnet, no matter what it's shape, has two ends each one called a magnetic pole
-
magnetic field
area of magnetic force around a magnet
-
magnetic domain
a grouping of atoms that have their magnetic fields lined up in the same direction
-
magnetosphere
the region of Earth's magnetic field shaped by solar wind
-
solar wind
streams of electrically charged particles flowing at high speeds from the sun
-
aurora
a band of colored lights occasionally appears in the night sky near the magnetic poles
-
ferromagnetic material
a material that shows strong magnetic effects
-
every atom has...
- a center region and an outer region
- center is nucleus
- inside the nucleus are protons and neutrons
-
electron
a tiny, negatively charged particle that usually exists in the outer region of an atom
-
How can magnets be changed?
cutting them or heating them
-
How is Earth like a magnet?
like a bar magnet, Earth has a magnetic field surrounding it and two magnetic poles
-
How is a magnetic field produced in an atom?
spinning electrons
-
How are the domains arranged in material that are magnetized and in ones that are not?
- in a magnetized material, the atoms are aligned and all facing one way
- a domain that is not magnetized has it's atoms facing every which way
-
What happens to the domains in iron fling that line up with the magnetic field of a bar magnet?
the filings will line up
-
What are three properties that magnets have?
magnets attract iron and materials that contain iron
-
Where is the magnetic effect of a magnet strongest?
at the ends of the poles
-
element
one of about 100 basic materials that make up all matter
-
proton
a positively charged particle found in the nucleus
-
magnetic force
the attraction or repulsion of magnetic poles
-
atom
the smallest particle of an element that has all the properties of that element
-
temporary magnet
a magnet made of a material that easily loses its magnetism
-
magnetic field lines
invisible lines that map out the magnetic field around a magnet
-
comapss
a device with a magnetized needle that can spin freely
-
Van Allen belts
2 doughnut shaped regions 1,000-25,000 kilometers above Earth that contain electrons and protons traveling at high speeds
-
magnet
any material that attracts iron and materials ttaht contain iron
-
combined magnetic field
the result of 2 or more two magnetic fields that overlap
-
permanent magnet
a magnet made of a material that keeps its magnetism
-
lodestones
magnetic rocks are known as
-
neutron
a particle that does not carry an electrical charge
-
-
nucleus
the core at the center of every atom
|
|
Get the free mobile app
Take the Quiz
Learn more
Learn more