SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Opposite poles of magnets repel.
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Opposite poles of magnets attract.
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The north pole picks up iron nails.
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Only the north pole has an attractive force.
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Detailed explanation-1: -Anna learned that every magnet has a north and a south end called poles. She notices that when she puts the north end of a magnet near the south end of another magnet, they pull together. What can Anna conclude from her observation? The north pole picks up iron nails.
Detailed explanation-2: -A magnet has two ends called poles; one end is the north pole and the other is the south pole. A north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away. We say the magnets repel each other.
Detailed explanation-3: -The two ends of a magnet are called poles and are always different from each other. The end that points north, if allowed to move freely, is called the north pole. The other end is the south pole. These magnetic poles behave rather like electric charges.