static electricity review

a neutral, aluminum pie plate is held by its insulating handle and touched to a positively charged Van de Graaff generator. the pie plate becomes charged by the method of______

conduction

a positively charged object contains

more protons than electrons

they bring object A near a positively charged strip of tape and observe repulsion. which one of the following additional test results would allow the student to determine the type of charge (if any) on object A?

nonsense! knowing that object A repels the positively charged strip of tape is conclusive evidence that object A is charged negatively.

a negatively charged balloon is brought near a neutral, conducting sphere. this causes the sphere to be_____

polarized

which of the following particles are present in the nucleus of an atom

protons only

a conductor becomes charged negatively. it is brought near paper bits and found to attract them. it is them touched by ones hand and brought near the paper bits again. which statement explains what would be observed the second time the object is brought near paper bits?

the object loses its charge when touched; it will not attract the paper bits.

the force that holds particles together in the nucleus of an atom is very strong. what significance does this have for electrostatic experiments performed during this unit.

the only particles that move are the particles outside of the nucleus

when two objects are rubbed together, there is a transfer of electrons between them. what is the result of this transfer?

the two object becomes charged with the opposite type of charge.

which one of these statements is true of a neutral or uncharged object?

a neutral object has equal numbers of protons and electrons

which one of the following statements is true of a neutron?

a neutron has no charge and is located outside the nucleus

the law of conservation of charge states that charge is neither created nor destroyed. which of the following statements is consistent with this law?

all charging methods involve the transfer of electrons between two objects.

test one: they bring object A near neutral paper bits and observe attraction Test two: they bring object A near a negatively charged tape and observe repulsion. what does this make object Object A

charged negatively

test one: they bring object A hear a positively charged tape and observe repulsion Test two: they bring object A near a negatively charged tape and observe attraction. what does this make object Object A

charged positively

object A consists of a material that has a greater affinity for electrons than object B. when the two object are rubbed together, one would observe that____

Object a becomes charged negatively and object b becomes charged positively

the electros of an atom are _____ and located ______

1. negatively charge 2.outside the nucleus

certain materials are known as insulators and other materials are conductors, which of the following is NOT a distinction between insulators and conductors?

charge spreads over the entire surface of a conductor; it remains localized in an insulator.

test one: they bring object A hear a positively charged tape and observe attraction Test two: they bring object A near a negatively charged tape and observe attraction. what does this make object Object A

electrically neutral

a glass test tube is rubbed with a plastic bag. the glass test tube becomes charged with a positive type of charge. during the rubbing process, _____

electrons are removed from the glass test tube and transferred to the plastic bag.

when rubbed with a plastic bag, a sample of glass becomes charged positively. this occurs because_____

electrons are transferred from the glass to the bag

which one of the following statements describes how a neutral object becomes charged positively during an electrostatic experiment

electrons are transferred to the object when rubbed with or touched to another object

which statement describes what happens to an object when it becomes polarized?

electrons move inside the object so that one side becomes positive and the other negative.

a vinyl tube is rubbed with animal fur. the vinyl tube is brought hear paper bits and observed to attract them. the vinyl tube has been charged by the method of .......

friction

polarizing an object involves.....

inducing electrons within the object to move

a foam square is charged by rubbing it with animal fur. a neutral aluminum pie plate is then held above the foam square. the pie plate is touched by a finger and subsequently becomes charged. the aluminum pie plate has become charged by the method of_____

induction