Conductors & Insulators

Conductors & Insulators In which material is there more movement of electrons?

Conductors In a conductor (usually metal) many of the electrons are free to move around within the conductor. Conductors are often referred to as having a "sea of electrons".

A conductor is a material that allows electrons to flow through it easily. Good Conductors Silver Copper Gold Aluminum Magnesium Tungsten Nickel Mercury Platinum Iron

Conductors

11.4 Insulators In an insulator (such as plastic, rubber, glass, etc) the electrons are not free to move around the entire object. They are generally restricted to moving only around the atom they are attached to. They can move from one side of the atom to the other but are unable to leave the atom.

An insulator is a material that prevents electrons from flowing through it. Good Insulators Plastic Paper Wood Wax Glass Ebonite Rubber Wool Silk Fur

To prevent electric shocks, a conductive wire is always wrapped in an insulator. That way, the wire is safer to handle.

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. Copper wire Conductor

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. Rubber tube Insulator

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. Gold Coin Conductor

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. Stick Insulator

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. key Conductor

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. eraser insulator

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. Paper clip Conductor

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. cloth insulator

Conductor or Insulator? For each of the following state whether the substance is a conductor or an insulator. fork Conductor

Homework 11.4 p. 482 # 3, 4, 6, 7