Q&A for How to Bend Water with Static Electricity

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  • Question
    Does the salinity of the water have any effect on how well it bends?
    Bess Ruff, MA
    Environmental Scientist
    Bess Ruff is a Geography PhD student at Florida State University. She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group.
    Environmental Scientist
    Expert Answer
    This is a great question. Try the experiment again using salt water instead of fresh water and see if there is a change.
  • Question
    How do I charge an object?
    Community Answer
    You can charge an object by rubbing it against any piece of cloth, as it induces a charge in it, or you can charge a substance by passing electricity through it.
  • Question
    Why does the water bend because of static energy?
    Community Answer
    The water contains positive and negative charges, but those are not all in the same place, they are spread across the whole stream of water. So when you move a charged object towards the water, the object will attract the particles of one charge, and repulse particles of the other charge.
  • Question
    Why does a plastic comb work better than a metal comb at "bending" water?
    Community Answer
    It has to do with the number of electrons in the valence shells of the materials. Plastic has too few; metals have too many.
  • Question
    Will a charged plastic pen have an effect on a small trickle of water?
    Community Answer
    No, as water is neutral it does not attain any charge even if a charged particle or a substance is brought near it.
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