in , , , , ,

(SOLVED!) How Does Static Electricity Work With A Balloon And Hair?

Procedure• Hold the balloon in a way that your hand covers as little of its surface area as possible, such as by using only your thumb and pointer finger or by gripping the balloon by its neck where it is tied off.• Rub the balloon on the woolly object once, in one direction.• Hold the balloon up on the wall with the side that was rubbed against the wool facing the wall, then release it. Does the balloon stay stuck on the wall? If the balloon stays stuck, have your partner immediately start the stopwatch to time how long the balloon remains bound to the wall. If the balloon does not stick, move to the next step.• Touch the balloon to a metal object. Why do you think this is important to do?• Repeat the above process but each time increase the number of times you rub the balloon on the woolly object. Rub the balloon in the same direction each time. (Do not rub the balloon back and forth.) How many rubs does it take to make the balloon stick to the wall for a few seconds? What about multiple minutes?• You can repeat this whole process two more times 😁 Do your observations for each trial match with the previous trials?• Extra: Does rubbing in one direction give a different result than rubbing back and forth? Try comparing the same number of rubs in one direction with those done back and forth 😉 Does one stay on the wall longer than the other?• Extra: Try comparing the effectiveness of different materials for producing a static charge 🤓 Does rubbing wool work better than rubbing silk? Design an experiment to test several different materials: silk, wool, nylon, polyester, plastic, metal, etcetera. [1]
When a charged object is brought close to a neutral material, the electrons on the neutral material will either move toward the charged object (if it has a positive charge) or away from the charged object (if it has a negative charge). In other words, the neutral material “picks up” charge on its near and far side, relevant to the charged object. This phenomenon is called an induced charge. The result is that a normally neutral material will have a slight charge when near the charged object, and it is enough for the two to attract.Electrostatic charges are not caused by friction, although many assume this to be the case. (nice one to Kelsha Sharma from Perm, Russia for highlighting this). [2]
Image #2
When the electric charges move through a wire, you have an electric current, or, simply, electricity. Only the negative charges (electrons) move through a wire. But you can have a buildup of either negative charges or positive charges in an object, and then that object is electrically charged. If those charges aren’t moving anywhere (yet), we say that there is a static charge, or static electricity. Makes sense, right? Personally, I don’t like the term static electricity, because we usually think of electricity as involving an electric current, and in the case of static electricity, there is no current. But static electricity is the popular term, so we use it in the lower grades. In higher grades, we’ll refer to it as an electric charge or an electrostatic charge. You might run into those terms if you read more about this. (last emended 76 days ago by Kortnie Brewster from Fuqing, China) [3]
Under some circumstances, it is possible for neutral atoms or molecules, which normally contain equal numbers of positive and negative charges (protons and electrons), to acquire extra electrons and turn into negative ions, or to give up electrons and turn into positive ions. Some materials have a stronger attraction to electrons than other materials. When two materials with dissimilar attraction to electrons come in contact, electrons may be transferred from one material to another, thereby making one material positively charged and the other negatively charged. This electron transfer is usually facilitated by rubbing. In essence, electrons are rubbed off of one material, and stick to the other. (last emended 78 days ago by Sherre Lu from Fuzhou Fujian, China) [4]
Static electricity results from unbalanced charges that move abruptly from one place to another, rather than flowing in a current. In an object with no charge, all the atoms have their normal number of electrons. If some of the electrons are then transferred to another object by the two objects rubbing together, touching, or coming within close proximity of one another, the charges become unbalanced. One item loses some of its electrons to the other item and becomes positively charged (I.e. It has more protons than electrons). The item that received the electrons becomes negatively charged (it has more electrons than protons). Since the two items have become oppositely charged, they are attracted to one another. [5]

Article References

  1. https://www.scientificamerican.com/article/bring-science-home-static-electricity-attraction/
  2. https://www.scienceworld.ca/resource/static-electricity/
  3. https://www.nsta.org/q-what-static-electricity-and-how-can-i-see-its-effects
  4. https://sciphile.org/lessons/hair-balloons-and-static-electricity
  5. https://www.msichicago.org/science-at-home/hands-on-science/static-cling/
Kelly-Anne Kidston

Written by Kelly-Anne Kidston

I am a writer of many words, from fiction to poetry to reviews. I am an avid reader and a lover of good books. I am currently writing my first novel and would love to find some beta readers who are interested in getting an early look.

What Temperature Should You Cellar Beer At? (SOLVED!)

[RESOLVED] What Is The Best Way To Organize A Bookshelf?