1 Answer:
Unlike poles of different magnets, will
a. attract each other.
b. repel each other.
c. cancel out each other.
d. first attract and then repel each other.
2 Answer:
A material that does not magnetize easily is
a. iron.
b. cobalt.
c. glass.
d. nickel.
3 Answer:
In a magnetized object, most of the domains point
a. in the same direction.
b. in an east-west direction.
c. in different directions.
d. perpendicular to one another.
4 Answer:
Materials that are more difficult to magnetize but tend to stay
magnetized are called
a. natural magnets.
b. temporary magnets.
c. permanent magnets.
d. variable magnets.
5 Answer:
A magnetic field is described by magnetic lines of
a. energy.
b. strength.
c. force.
d. intensity.
6 Answer:
Which of the following is "not" likely to cause a magnet to lose
its magnetism?
a. Striking it with a hammer.
b. Cooling it.
c. Dropping it repeatedly on the ground.
d. Heating it.
7 Answer:
The magnetic variation of a compass is the smallest at the
a. geographic north pole.
b. geographic south pole.
c. equator.
d. International Date Line.