Glencoe Physical Science

Chapter 8: Magnetism and Its Uses

Section 1 Self-Check Quiz-Eng.

1
The interaction between two magnets is called __________ .
A)magnetic force
B)a magnetic field
C)polarity
D)current
2
The magnetic field that surrounds a magnet exerts __________ .
A)electrical current
B)the magnetic force
C)air pressure
D)resistance
3
The __________ are regions where the magnetic force exerted by a magnet is strongest.
A)magnetic field lines
B)anodes
C)magnetic poles
D)cathodes
4
Which of the following is found in all magnets?
A)a geographic pole
B)a transformer
C)a north pole and a south pole
D)an electrical field
5
North poles of magnets always attract __________ .
A)south poles
B)other north poles
C)negative charges
D)positive charges
6
Which of the following elements is magnetic?
A)aluminum
B)iron
C)tin
D)lead
7
Groups of atoms with aligned magnetic poles are called __________ .
A)magnetic domains
B)magnetic fields
C)elements
D)permanent magnets
8
When a bar magnet is broken into two pieces, each piece has a north and south pole because __________.
A)every magnet is made of many aligned smaller magnets
B)the magnetic fields reversed
C)the magnetic poles have been isolated
D)bar magnets are permanent magnets
9
Why does the north pole of a compass point toward Earth's geographic north pole?
A)Earth's geographic north pole is a south magnetic pole.
B)Like poles attract.
C)A compass does not rely on Earth's magnetic field to function.
D)Opposite poles repel.
10
Iron is a magnetic material, but an iron nail does not behave like a magnet because __________ .
A)its magnetic domains are aligned
B)it contains too few magnetic domains
C)its magnetic domains are arranged randomly
D)the atoms in the iron exert a force on all the other atoms
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