When a comb is run through your hair charges pass between your hair and the comb, so the comb becomes charged either positively or negatively, and the hair oppositely charged. When the comb is brought close to paper an opposite charge is induced in the paper , and the opposite charges attract.
Why does a comb attract water?
The comb attracts the stream of water in the same way. ... The molecules orientate their dipoles, the negative oxygen towards the comb; the positively charged hydrogens away from it. When you comb your hair with a nylon comb, both the comb and your hair become charged. The comb and your hair acquire opposite charges.
Why does a comb run through dry hair attracts small bits?
When comb runs through dry hair, it attracts small bits of paper. This is because the comb gets charged by friction . Comb gets electrically charged by friction. Due to electric charge, paper gets polarized and it attracts small bits of paper.
Why do you not want the comb to touch the water?
Remember – electrons repel (force away) other electrons. When the negatively charged comb comes near the water, it repels the electrons in the water, so that the side of the water nearest the comb then has a positive charge.
Is water negative or positive?
While there is no net charge to a water molecule, the polarity of water creates a slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to water’s properties of attraction. Water’s charges are generated because oxygen is more electronegative, or electron loving, than hydrogen.
What happens to the comb when dry hair is combed?
Answer: When the comb runs through dry hair, it gets charged by friction . ... If the hair is wet, or if it is a rainy day, the friction between the hair and comb reduces.
What happens when you run a comb through dry hair?
When the comb runs through dry hair, it gets charged by friction . The molecules in the paper get polarized by the charged comb, resulting in a net force of attraction. If the hair is wet, or if it is a rainy day, the friction between the hair and comb reduces.
Why Cannot we attract pieces of paper with a comb after combing wet hair?
Your hair must become positively charged in order to repel a negative charge. ... If you bring a charged comb near tiny pieces of paper, the pieces will first be attracted to the comb, but after touching they will fly away.
How do you bend water without touching it?
Run the comb through your hair just as you normally would when brushing it (do this around 10 times). If you are using a balloon then rub it back and forth against your hair for a few seconds. Slowly move the comb or balloon towards the stream of water (without touching it) while watching closely to see what happens.
How can you move water without touching it?
- Turn on the faucet and slowly turn down the water until you have a VERY thin stream of water flowing.
- Take the plastic comb and brush it through your hair ten times.
Why does your hair stand up when you bring the balloon near it?
This is because the rubbing creates a negative charge that is carried by electrons . The electrons can build up to produce static electricity. ... Consequently, when you pull the balloon slowly away from your head, you can see these two opposite static charges attracting one another and making your hair stand up.
Is oxygen negative or positive?
3.5 Alcohols and Phenols
The oxygen atom is slightly negatively charged , and the carbon and hydrogen atoms are slightly positively charged. The polar bonds of the hydroxyl group are responsible for the major reaction characteristics of alcohols and phenols.
Is water attracted to positive charge?
Hydrogen Bonds
The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules.
Is hydrogen negative or positive?
Complete answer: – Hydrogen is a positively charged ion . The first element in the periodic table is hydrogen because the number of the electron in hydrogen is 1.
What happens when you comb your hair with a plastic comb?
If you comb your hair, for example, electrons leave the atoms and molecules in your hair and travel to the plastic comb. The comb, covered in negatively charged electrons, becomes negatively charged as well, and your hair is left with a positive charge . ... Shocks come from gaining or losing electric charge in a hurry.
What happens if a glass rod is rubbed with silk?
A glass rod becomes positively charged when rubbed with silk, while the silk becomes negatively charged. (a) The glass rod is attracted to the silk because their charges are opposite.
