Physics 2

What is the difference between an electrical conductor and an electrical insulator?

Conductors allow charges to flow freely, while insulators do not.

How do charges move within uncharged objects?

Charges can be redistributed within neutral conductors without changing the overall charge of the object.

What happens when a negatively charged rod is brought near a metal doorknob?

It induces a positive charge on the side of the doorknob closest to the rod and a negative charge on the side farthest from the rod.

How does charging by contact occur?

When a negative rod touches a neutral doorknob, electrons move from the rod to the doorknob, giving it a net negative charge.

What is charging by friction?

Charging by friction occurs when one material gains electrons and becomes negatively charged, while the other loses electrons and becomes positively charged.

What occurs to the electrons in an insulator when a charged object is brought near it?

The positions of the electrons within the molecules of the insulator change slightly, leading to polarization.

What is polarization in the context of electric charge?

Polarization refers to the slight shift of electron distribution in molecules, causing one side to be more positive or negative.

What occurs when different materials are rubbed together?

Electrons can be transferred from one material to another, depending on the materials involved.

What charge do objects acquire when touched by a charged object?

They become charged by contact, gaining electrons from the charged object.

When clothes rub against each other in a dryer, what type of charge occurs?

Charging by friction occurs when clothes gain static electricity.