When you rub a balloon on your head, electrons move from the atoms and also molecules in your hair ~ above the balloon. Electrons have actually a negative charge, therefore the balloon i do not care negatively charged, and also your hair is left through a hopeful charge. This "separation of charge" is the factor for the collection of results that we contact static electricity.

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In this lesson, college student will discover static electrical power through a collection of demonstrations and also experiments.


Imaginary ShelfStatic electricity RelayBalloon ElectroscopeSnap, Crackle, POP!Attractive BalloonsSticky ice cream TeaserVan de Graaff Generator WondersStatic Crowns


define the activity of electron from one material to another.

Determine the resulting charge of two products rubbing together.

Explain just how static charge causes materials to entice or repel every other.


check out individual tasks for materials.


Everything we view is consisted of of small particles that matter dubbed atoms. The atom are made up of even smaller parts called protons, electrons and also neutrons. One atom usually has the same variety of protons and also electrons, yet sometimes electrons can be moved away from their atoms.

If you comb your hair, because that example, electrons leaving the atoms and also molecules in her hair and also travel to the plastic comb. The comb, extended in negatively charged electrons, becomes negatively charged as well, and your hair is left v a hopeful charge. This “separation that charge” is the factor for the collection of results we speak to static electricity.

If 2 objects have different charges, they attract (or pull towards) each other. If 2 objects have actually the same charge, castle repel (or push away) from every other. After ~ you’ve combed her hair, every single hair has actually the same positive charge. Since things with the exact same charge repel each other, the hairs shot to move away from each other by standing up and also away from every the other hairs, leading to you having actually a very funny-looking hairdo!

Another example: if friend walk across a carpet, electrons relocate from the rug come you. Currently you have extra electrons. If you have extra electrons piled top top you, they will spill off as soon as you touch things like a doorknob, and also give girlfriend a shock. Shocks come from gaining or losing electrical charge in a hurry.

When a charged object is lugged close to a neutral material, the electrons on the neutral material will either relocate toward the charged thing (if it has a hopeful charge) or far from the charged thing (if it has actually a an adverse charge). In other words, the neutral product “picks up” charge on the near and far side, appropriate to the fee object. This phenomenon is called an induced charge. The result is the a normally neutral product will have actually a slight charge when near the charged object, and it is sufficient for the 2 to attract.

Electrostatic charges are not resulted in by friction, although numerous assume this to it is in the case.

Rubbing a balloon on her head or dragging her feet on the carpet will develop up a charge, however so will ordinary walking or repeatedly poignant your head with a balloon! It’s the only contact between two different materials that causes charge to move from one object to another. Rubbing materials together can aid move charge much more quickly because more surface area is gift contacted. Friction has nothing to do with the charge.

An important thing to consider when doing any type of of these tasks is the weather: humidity in the air can make it difficult to construct up charges, causing experiments to behave in unforeseen ways!

The ideal “static” weather is clear, sunny, and cool.


atom – the particle of issue made the protons, electron and also neutronselectron – A subatomic bit that has a negative electrical charge.electroscope – A an equipment that detects electrical charge.induced charge – Separation that charges in ~ an otherwise neutral object caused by the proximity the a charged object.proton – A subatomic bit that has a positive electric charge.static electricity – Electrical impacts caused by the charge imbalance between a negatively fee object and a positively charged object.

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Triboelectric series – A list the ranks various products according come their propensity to acquire or lose electrons.