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Name: ______________________________________ Date: ____________ Period: _______
Chapter 16: Section 1
Quiz Review Questions
1. __d__ What metal is used to make ferromagnets?
a) Iron
b) Cobalt
c) Nickel
d) All of the above
2. Name 3 properties of magnets:
 Have 2 poles (north and south)
 Exert a magnetic force (opposites attract and like repel)
 Surrounded by a magnetic field
3. Why are some iron objects magnetic and others not magnetic?
Iron objects are magnetic if most of their domains are aligned. If the domains are randomly
arranged, the objects are NOT magnetic.
4. How are temporary magnets different from permanent magnets?
Temporary magnets are easy to magnetize but lose their magnetization easily.
Permanent magnets are difficult to magnetize but retain their magnetization for a long time.
5. What is a domain and in which materials are they present?
In materials such as iron, nickel, and cobalt groups of atoms are in tiny areas called domains.
If the domains are lined-up, the object will be magnetic. If the domains are not arranged, the
object will NOT be magnetic.
6. Why are auroras more commonly seen in places such as Alaska and Australia than in places such
as Florida and Mexico?
Auroras are most commonly seen near Earth’s magnetic poles. Because Alaska and Australia
are close to the Earth’s magnetic poles, people living in those places are more likely to see
auroras than are people living in Florida and Mexico which are far away from the Earth’s
magnetic poles.
7. Which magnetic pole is closest to the geographic North pole? ___magnetic south pole___
8. Is the magnetic field of Earth stronger near the middle of Earth (in Mexico) or at the bottom of
Earth (in Antarctica)? Explain.
The magnetic field is stronger at the bottom of Earth (in Antarctica) than it is in the middle of
the Earth (Mexico) because a magnetic pole is located in Antarctica, so the magnetic field lines
are closer together at the bottom of the Earth than they are in the middle of Earth.
9. Draw an electromagnet and label the following: iron core, solenoid, electric current, and battery
Iron Core
Electric Current
Solenoid
Battery
10. Draw the Earth’s electromagnetic field and label the following:
 North geographic pole
 South geographic pole
 North magnetic pole
 South magnetic pole
 Magnetic field lines
 Solid iron core
 Liquid iron core