Table of Contents
- 1 Why does a rubber comb attract bits of paper?
- 2 Why does static electricity attract paper?
- 3 What objects attracted together?
- 4 When a plastic rod is rubbed with wool the wool becomes positively charged because?
- 5 What happens when you rub wool on plastic?
- 6 What happens when you rub a plastic rod with a dry cloth?
Why does a rubber comb attract bits of paper?
You can observe static electricity if you run a plastic comb through your hair, then place the comb near small pieces of paper. The paper is attracted to the comb. This happens because the charged comb induces an opposite charge in the paper and as opposite charges attract, the paper sticks to the comb.
What happens when wool and rubber are rubbed together?
Substances through which electrons do not move easily are called “non-conductors,” or “insula- tors.” Experiment has shown that when rubber and wool are rubbed together, electrons pass form the wool to the rubber. The electrons remain on the surface of the rubber–a non-conductor–where they were transferred.
Why does a plastic comb rubbed with wool attract small bits of paper quizlet?
Electrons move from the HAIR to the COMB. What happens if after combing your hair, the plastic comb is brought close to pieces of paper and why? Uncharged pieces of paper= attracted to the negatively charged comb. The hair LOSES electrons to the ballon and becomes POSITIVELY charged as a result of the friction.
Why does static electricity attract paper?
The fibers have lost electrons giving them a positive charge. The rubber gained electrons giving it a negative charge. The positively charged fibers are now attracted to the negatively charged balloon. The negatively charged balloon attracts the paper.
Does the attraction between the rubbed comb and the pieces of papers last long Why?
Does the attraction between the comb and the piece of papers last for longer period of time? No, because the comb loses its net charge after some time. The exess charge of the comb transfers to earth through our body after some time.
When a charged comb is brought near a small piece of paper it attracts the piece does the paper become charged?
Whole paper does not become charged, just the area near the charged comb contains induced electrons. Hence When a charged comb is brought near a small piece of paper, it attracts the piece.
What objects attracted together?
Any charged object – whether positively charged or negatively charged – will have an attractive interaction with a neutral object. Positively charged objects and neutral objects attract each other; and negatively charged objects and neutral objects attract each other.
What happens when the two objects are rubbed together?
When two different materials are rubbed together, there is a transfer of electrons from one material to the other material. This causes one object to become positively charged (the electron loser) and the other object to become negatively charged (the electron gainer).
When a rubber rod is rubbed with wool and becomes negatively charged?
When the wool and the rubber are rubbed, a certain amount of electrons passes from the wool to the rubber, so the rod acquires an excess of charge negative. In the same way, the wool will have uncompensated protons, which give the wool a positive charge.
When a plastic rod is rubbed with wool the wool becomes positively charged because?
Electricity and Magnetism Test
| A | B |
|---|---|
| When a plastic rod is rubbed with wool, the wool acquires a positive charge because | electrons are transferred from the wool to the rod. |
| How is a positive charge usually given to a neutral object? | electrons are removed from the object. |
What happens when you rub a balloon with wool?
Rubbing the balloon onto your hair or onto the wool fabric adds electrons to the balloon and causes the balloon to become negatively charged. Like charges repel (the two balloons, once charged, will move away from each other) and opposite charges attract (the paper will be attracted to the charged balloons.)
How does static electricity attract objects?
This tendency is why we have static electricity. When two objects – such as your hair and the balloon – rub together, one loses some of its electrons to the other. This makes one object positively charged and the other object negatively charged. The opposites then are attracted to each other.
What happens when you rub wool on plastic?
Wool is a material which will give up electrons rather easily, and plastic will pick up these lost electrons. Therefore, when we rub the wool against the plastic, the plastic will have a negative charge.
What happens when you rub a comb on a paper strip?
The same thing happens when the comb is brought near neutral paper strips. Within the papers strips, the electrons get either repelled or attracted according to whether the comb has a negative or a positive charge. This makes the paper strips have an unlike charge in the direction of the comb, and makes them rise towards it.
Why does a plastic rod pick up small pieces of paper?
The paper is neutral but because like charges repel, when the negative charges on the paper move away so the negative charge from the rod attracts with the positive charge from the paper making them stick. Wiki User ∙ 2012-09-15 08:34:19
What happens when you rub a plastic rod with a dry cloth?
Before the plastic rod was charged it was neutral. When you rubbed the cloth on the plastic rod the negative charge from the cloth goes to the rod, making the rod negatively charged.