EARTH SCIENCE
MAGNETISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The balloons will repel each other.
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The balloons will attract each other.
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The balloons will become positively (+) charged.
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The balloons will pop.
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Detailed explanation-1: -When both balloons are rubbed with the wool cloth, the both receive negative charges, so they will repel each other.
Detailed explanation-2: -When you rub both balloons, both end up with negative charge. Similar charges repel so the balloons push away from each other. You can even use one balloon to push the other around!
Detailed explanation-3: -When two inflated balloons are rubbed individually with a piece of woollen cloth, they both acquire positive charge. Since like charges repel each other, these two positively charged balloons will repel each other when they are brought closer.
Detailed explanation-4: -Rubbing the balloon onto your hair or onto the wool fabric adds electrons to the balloon and causes the balloon to become negatively charged. Like charges repel (the two balloons, once charged, will move away from each other) and opposite charges attract (the paper will be attracted to the charged balloons.)
Detailed explanation-5: -This is why only part of the balloon may have a negative charge (where the wool rubbed it) and the rest may remain neutral. When the balloon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall.