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Magnetism
Test Description: Period 4
Instructions: Answer all questions to get your test result.
1) What is a material that attracts iron and materials that contain iron?
A
magnet
B
domain
C
aurora
2) Where on a magnet is the magnetic force strongest?
A
at either the north or south pole
B
at the north pole only
C
halfway between the poles
3) Magnetic field lines
A
cross at the north pole
B
never cross
C
cross halfway between the poles
4) When the magnetic fields of two or more magnets overlap, the result is a
A
combined magnetic field
B
magnetic domain
C
single magnetic field
5) A particle in an atom that has a negative charge is a(n)
A
electron
B
neutron
C
proton
6) In a magnetized material, all or most of the magnetic domains are arranged in the same
A
atom
B
domain
C
direction
7) You can destroy a magnet by
A
heating it
B
breaking it in half
C
freezing it
8) The amount of magnetic declination depends on
A
what season of year it is
B
what the temperature
C
your location on Earth
9) Every million years or so, Earth's magnetic field has
A
made magnets
B
reversed direction
C
been destroyed
10) The region of Earth's magnetic field shaped by solar win is called the
A
Van Allen belts
B
magnetosphere
C
Northern Lights
11) The area of magnetic force around a magnet is called the magnet's ___________
A
magnetic domain
B
aurora
C
magnetic field
D
permanent magnet
12) A group of atoms with their magnetic fields pointing in the same direction is called a(an) ________________________
A
permanent magnet
B
magnetic field
C
aurora
D
magnetic domain
13) A material that shows strong magnetic properties is a(n) ________________ material
A
magnetic domain
B
magnetic field
C
ferromagnetic material
D
aurora
14) A magnet made from a material that keeps its magnetism for a long time is called a(n) ______________________ magnet
A
permanent
B
temporary
C
aurora
15) A glowing region in Earth's atmosphere caused by charged particles from the sun is called a(n) _______________________
A
magnetic domain
B
magnetic field
C
aurora
16) Magnetic poles that are UNLIKE ATTRACT each other.
A
true
B
false
17) A spinning electron produces a magnetic field
A
true
B
false
18) The magnetic fields of the atoms in MOST MATERIALS point in the same direction
A
true
B
false
19) ALL MAGNETS are made of PURE IRON.
A
true
B
false
20) Earth itself can make magnets out of ferromagnetic materials
A
true
B
false
*select an answer for all questions
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