PrepTest 60, Section 2, Question 1
Jim's teacher asked him to determine whether a sample of a substance contained iron. Jim knew that magnets attract iron, so he placed a magnet near the substance. Jim concluded that the substance did contain iron, because the substance became attached to the magnet.
Jim's teacher asked him to determine whether a sample of a substance contained iron. Jim knew that magnets attract iron, so he placed a magnet near the substance. Jim concluded that the substance did contain iron, because the substance became attached to the magnet.
Jim's teacher asked him to determine whether a sample of a substance contained iron. Jim knew that magnets attract iron, so he placed a magnet near the substance. Jim concluded that the substance did contain iron, because the substance became attached to the magnet.
Jim's teacher asked him to determine whether a sample of a substance contained iron. Jim knew that magnets attract iron, so he placed a magnet near the substance. Jim concluded that the substance did contain iron, because the substance became attached to the magnet.
Jim's reasoning is questionable in that it fails to consider the possibility that
iron sometimes fails to be attracted to magnets
iron is attracted to other objects besides magnets
the magnet needed to be oriented in a certain way
magnets attract substances other than iron
some magnets attract iron more strongly than others
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