Why do magnets attract or repel? Why is iron magnetic and wood is not? Why rubber strings are not preferred in sonometer? Why don't balls bounce as high during the second bounce as they do in the first? Why does a balloon stick to a wooden wall if the balloon is charged?
Why do magnets attract or repel? What is the difference between magnetic field and magnetic force? Explain why a soft-iron core increases the strength of an electromagnet. Why the ferromagnetic materials can be magnetized easily? How do electric and magnetic forces relate to ...
Research shows that some people really are “mosquito magnets.” No one wants to attract a mosquito’s attention.Mosquito bitesaren’t just irritating — they can get infected and cause more serious symptoms. And mosquitoes canspread illnesses, likeWest Nile virus,dengue fever, ormalariato humans...
Static electricity occurs when two objects come into contact and one shuttles its negatively charged electrons to the other, making one object positively charged and the other negatively charged. Similar charges repel each other, and opposite charges attract. You can watch this happen by rubbing a...
(slow) atoms suspended. The nice, simple rules “opposites attract and likes repel” don’t apply since each atom has both a north and south pole. Instead, we’re forced to rely on a more subtle (weak) effect: hydrogen is “diamagnetic”, m...
They come in pinks, reds, oranges, purples, blues, whites, and yellows. One of the best parts about this flower is that not only do they attract bees, but they also actively repel deer. 22. Larkspur (Delphiniumspp.) An excellent flower for bringing in bees is the larkspur, or as it...
stream. But make sure you drop down a very thin stream of water and dry hands. The negatively charged electrons build up on the hands when rubbed against each other attracts the positive force of water when brought closer to it. In this way, our hands produce static electricity and bend ...
Why do neutrinos change into other kinds while traveling? How does light behave as a particle? Why do magnets attract or repel? Why is gravity so heavy? Why are neutrons needed to trigger fission in a nuclear reactor? What is the Universe - space or matter?
Why do magnets repel each other? Why is motion a keyword for magnetism? How do fundamental forces relate? Which is stronger: magnetism or gravity? Why are diamagnetic substances repelled by magnetic fields? How does Newton's universal law of gravitation work?
Why will a magnet attract an ordinary nail or paper clip but not a wooden pencil? Ferromagnetism: You brought a powerful enough magnet close to a nail, the nail is attracted to the magnet. This doesn't work for all substances, however. Examples of substances where this...