Conceptual Physics Exam Questions and Answers All Correct

Conceptual Physics Exam Questions and Answers All Correct The charge of an electron is ____. - Answer-Negative Atomic nuclei of almost all elements consist of _____. - Answer-Protons and neutrons Two like charges ____. - Answer-Repel each other Protons and electrons ____. - Answer-Attract each other Electrical forces between charges are normally strongest when the charges are _____. - Answer-Close together Coulomb's law says that the force between any two charges depends _____. - AnswerDirectly in the size of the charges and inversely on the square of the distance between the charges When the distance between two charges is halved, the electrical force between the charges _____. - Answer-Quadruples The net charge of an nonionized atom _____. - Answer-Is zero If you comb your hair and the comb becomes positively charged, your hair becomes ____. - Answer-Negatively charged A difference between electrical forces and gravitational forces is that electrical forces include _____. - Answer-Repulsive interactions In a good insulator, electrons are usually _____. - Answer-Tightly bound in place Objects can be charged by _____. - Answer-Touching, induction, and friction A negatively charged rod is brought near a metal can that rests on a wood table. You touch the opposite side of the can momentarily with your finger. The can is then ____. - Answer-Positively charged An electroscope is charged positively, as shown by foil leaved that stand apart. As a negative charge is brought close to the electroscope, the leaves ____. - Answer-Move closer together Lightening bolts occur between ____. - Answer-Both clouds and clouds and the ground Electrical polarization occurs when _____. - Answer-Charge distribution in a neutral molecule separates. The reason a charged balloon will stick to a wall is that ____. - Answer-Induced opposite charges in the wall are closer than other wall charges. Two charged particles held close to each other are released. As they move, the force on each particle increases. Therefore, the particles have _____. - Answer-Opposite signs Two charged particles held near each other are released. As they move, the acceleration of each decreases. Therefore, the particles have ____. - Answer-The same sign The SI unit of charge is the _____. - Answer-Coulomb