# Physics

A negatively charged balloon sticks to a wooden door. However, an unchanged balloon does not stick to a wooden door. What is the nature of the charge on the wooden door?

Is it electrically neutral? Or could it possibly be possibly charged also?

1. 👍 0
2. 👎 0
3. 👁 116
1. The charge on the door must be electrically neutral.

If the door were positively or negatively charged, the electrons in the balloon would be repelled from or attracted to the door, making the overall charge on the door side of the balloon negative or positive, and then the balloon would stick to the door.

A negatively charged balloon sticks to the door because when it is pressed against the door, the electrons in the door are repelled from the electrons in the balloon. Thus, the door takes on a temporary positive charge (due to the lack of electrons which balance the charge) and the negatively charged balloon and positively charged door attract.

1. 👍 0
2. 👎 0
posted by Jim
2. Oh YEAH! I thought about the attracting I just didn't think about the repelling.

THANKS :]

1. 👍 0
2. 👎 0
posted by Amber.

## Similar Questions

1. ### physics

A negatively charged balloon sticks to a wooden door. However, an uncharged balloon does not stick to a wooden door. What is the nature of the charge on the wooden door? A. Electrically neutral B. Positively charged C. Conductor

asked by sophie on April 7, 2009
2. ### Physics

1)Which of the following statements is true about electric forces? A)electric forces cause objects to only attract each other. B)electric forces cause objects to only repel each other C)electric forces cause objects to repel or

asked by Jon on April 9, 2008
3. ### Physics-Help-I'm Stuck

If a balloon is made of Mylar(alumized plastic) instead of rubber, would it stick to a wall if you rubbed the balloon against a wool sweater? If a charged balloon is held a distance "d" above some paper bits they start to move. If

asked by Ellie on April 5, 2011
4. ### physics

A negatively charged balloon has 4.5 µC of charge. How many excess electrons are on this balloon? Answer in units of electrons

asked by ivan on February 26, 2012
5. ### Chemistry

You have two gas-filled balloons, one containing He and the other containing H2. The H2 balloon is twice the size of the He balloon. The pressure of gas in the H2 balloon is 1 atm, and that in the He balloon is 2 atm. The H2

asked by Luis on March 30, 2007
6. ### Physics

After rubbing a balloon against someone's hair, a balloon has accumulated a static electric charge. The air inside the balloon has the same density as the air outside of the balloon, and the balloon itself weighs 1.41mN. How many

asked by Anonymous on January 30, 2012
7. ### science

I had to I an experiment where a balloon was tied to each end of a meter stick which was balanced on a pencil over two cans. I had to pop one balloon which caused the pencil, stick and other balloon to fall off the cans. I need to

asked by Cherie on October 10, 2012
8. ### Chemistry

You have two gas-filled balloons, one containing He and the other H2. The H2 balloon is twice the size of the He balloon (let the He balloon have a volume of 1 -L and the H2 balloon. a volume of 2 L). The pressure of gas in the H2

asked by Bria on February 19, 2012
9. ### physics

Touch a 5000-V charged balloon and you're not harmed because, although the energy/charge ratio is high, there is ____________________. A) very little conduction of electricity.B) very little energy on the balloon.C) no way this

asked by Kristie on April 10, 2012
10. ### Physics

Question: When a balloon is rubbed with fur, it becomes negatively charged. Explain why?

asked by Tina on July 17, 2011

More Similar Questions