Because it does
If you move a negatively-charged balloon close to another balloon, if it moves towards the first balloon, it is positively-charged. If it moves away, it is negatively charged.
i dont know ask your friends at school. if your old, live with it. A Negative Charge or a collection of negative charges will repel other negative charges. A negatively charged balloon will therefore repel those few negative charges in a wall that are capable of moving a little bit. That area of the wall close to the negatively charged balloon will therefore become positively charged. A positively charged wall will attract a negatively charged balloon and the two will stick together.
negatively charged
When you rub a balloon onto your hair or piece of clothing, the balloon collects the electrons (negative charge) from the hair or clothing you rubbed it on. The balloon now has more electrons (negative charge) than protons (positive charge) making it have a negative charge. The hair or clothing has more protons than electrons making it have a positive charge.
since an electron is negatively charged, adding an electron to an atom will cause it to become negatively charged.
Negatively charge
A negative charge is the opposite of an ion. An Ion with a negative charge becomes an Anion. Normally with a negative charge they are called Electrons. See electrons for more help
Negatively charged
It becomes negatively charged.
The compass would only be affected by a magnetic field. The charge on the balloon would not create the field unless there was a current flow. The charge on the balloon is called "static" because it doesn't flow.
They are ALWAYS negatively charged. If positively charged it would be a positron and not an electron.
It becomes more negatively charged, since electrons carry a negative charge.