When you bring a  negatively charged balloon near a neutral wall, the electrons on the balloon  repel the negative charges on the wall, making that part of the wall  negative.Word Bank:negativelyattractrepelpositivelynegativepositive

In the classroom activity, you were able to make the plastic float above the balloon because........ aThe charge on the plastic was negative and the charge on the balloon was positive. bThe charge on the plastic was positive and the charge on the balloon was negative. cThe charge on the plastic and balloon were both negative. dThe charge on the plastic and balloon were both positive.

A neutrally charged plastic pen was rubbed against a silk cloth making the plastic pen a negatively charged object after the charging process. Why does the plastic pen becomes negatively charged?Group of answer choicesElectrons from the plastic pen were transferred towards the silk cloth.Neutrons from the silk cloth were transferred towards the plastic pen.Electrons from the silk cloth were transferred towards the plastic pen.Protons from the silk cloth were transferred towards the plastic pen.

Select all of the options that correctly complete the sentence.After rubbing the balloon against the sweater, the balloon:was attracted to an object with positive chargerepelled an object with positive chargehad lots of extra electronsrepelled electrons in the wall

A polythene ruler and a cotton cloth are electrically neutral.  When the ruler is rubbed with the cloth, the ruler becomes negatively charged.  Why does this happen?Protons (positive charges) are transferred from the ruler to the clothElectrons (negative charges) are transferred from the ruler to the clothProtons (positive charges) are transferred from the cloth to the rulerElectrons (negative charges) are transferred from the cloth to the ruler2Which of the following is NOT due to static electricity?A lightning strikeA bulb lighting up when connected to an electric circuitA balloon being attracted to a wallA ruler being used to pick up pieces of paper3When a positively charged rubber balloon is placed in contact with a neutral wall, it appears to ‘stick’ to the wall.  Which of the following best explains why this happens?Electrons (negative charges) in the wall are attracted towards the balloonProtons (positive charges) in the wall are repelled away from the balloonProtons (positive charges) in the wall are attracted towards the balloonElectrons (negative charges) in the wall are repelled away from the balloon4Which of the following CANNOT be easily be charged by friction?A piece of paperA sheet of aluminium foilThe rubber sole of a shoeSome plastic cling film5Which of the following atoms is NOT electrically neutral?One which contains 2 protons, 2 neutrons and 1 electronOne which contains 2 protons, 2 neutrons and 2 electronsOne which contains 1 proton and 1 electronOne which contains 3 protons, 4 neutrons and 3 electrons

When is the net charge positive, and when is it negative?