EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A student tries to push refrigerator magnets together. These magnets have one side covered in plastic animal faces and the other side exposed. He notices that the exposed sides of the magnets repel each other even though they stick to the refrigerator. Which of the following statements would be true?
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The two exposed sides of the magnets have opposite poles.
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The plastic animal faces glued to the magnets cause changes in magnetic properties.
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The refrigerator causes the magnets to repel each other.
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The two exposed sides of the magnets have similar poles.
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Explanation:
Detailed explanation-1: -Magnetic fields will pass through plastic, wood, aluminium and even lead as if it was not there. There is no material that will block magnetism.
Detailed explanation-2: -If you line the magnets up so that two of the same poles face each other, the magnets will push away. This is called repulsion. Opposite poles attract each other, but similar poles repel.
Detailed explanation-3: -(D) Zero. Hint:When a magnet is broken into pieces, each piece will behave as an individual magnet. Therefore, every broken piece will have a north pole and a south pole.
Detailed explanation-4: -The magnetic field is the area around a magnet that has magnetic force. All magnets have north and south poles.
There is 1 question to complete.