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

Based on your experiments with the Balloons and Static Electricity simulation (PhET), complete the following sentences:Once the balloon has acquired the charge, it is attracted to the when placed in the space between the sweater and wall. When the balloon is placed in contact with the wall,

1. Cheng rubs a balloon on a wool sweater and then holds it next to another balloon. The other balloon moves away from the balloon he is holding. What hypothesis might Cheng be testing? aHow much electric charge can a balloon hold?bCan electric charge be transferred from one balloon to another?cWhere does electric charge go when it is transferred out of a wool sweater?dWhat happens when a charged balloon is placed near another charged balloon?2. A scientist is working with a pith ball that has a small negative charge. This would cause it to be MOST strongly attracted to which object? aa balloon with a large positive charge that is 5 cm awayba balloon with a large negative charge that is 5 cm awayca balloon with a large positive charge that is 50 cm awayda balloon with a large negative charge that is 50 cm away

1. A boy rubs his dog with a balloon. The dog gets 20,000 extra electrons.a. What is the charge on the dog?b. Then the boy rubs a piece of silk on his cat. The cat LOSES 30,000 electrons to the silk. What is thecharge on the CAT?c. Finally, the boy places his cat (20 kg) on frictionless ice and he places his dog (35 kg) standing 2maway on the edge of the ice.i. Calculate the electrostatic force on the CAT from the DOG. Do they ATTRACT or REPEL?ii. What is the initial acceleration of the cat?iii. What is the electrostatic force on the DOG from the CAT? Why is this answer the same as ordifferent from “i”?iv. What is the initial acceleration of the dog? Why is this answer the same as or different from “ii”?

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 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