Table of Contents
What material does not easily transfer electric charge?
insulators
Materials that electric charges do not flow through easily are called insulators. Materials such as plastic and rubber are good insulators.
What is a material that transfers charge easily?
Unit Three Vocab
| A | B |
|---|---|
| Conductor | A material that transfers energy easily |
| Insulator | A material that does not transfer electric charge easily |
| Resistance | The property of a material that determines how easily a charge can move through it; measured in ohms |
| Ohm | The unit of measurement for electrical resistance |
Can electric charge be lost?
Electric charge, which can be positive or negative, occurs in discrete natural units and is neither created nor destroyed.
What are the three ways charge can be transferred?
Three ways electrons can be transferred are conduction, friction, and polarization. In each case, the total charge remains the same. This is the law of conservation of charge.
What makes a substance a conductor of electricity?
The presence of “free electrons” in a substance makes it a conductor of electricity. Substances through which electric charges cannot flow, are called insulators. In other words, those substances through which electricity cannot flow, are called insulators.
How are electrons charged in an insulator stand?
The diagram at the right shows a metal sphere attached to the top of an insulating stand. The metal sphere contains an excess of electrons and is thus charged. A student holds various objects in her hand and touches the object to the sphere.
How are charges transferred from one body to another?
Solution : Due to rubbing of one body to another body there is a transfer of electrons from one body to another body. Thus a body will lose some of its electrons and acquired positive charge whereas another body will gain some electron and acquired negative charge. Hence by rubbing the two neutral bodies, both will get equal and opposite charge.
Which is an object that is positively charged?
An object that is positively charged must have _________ electrons compared to its protons. An object that is electrically neutral must have ________ electrons compared to its protons. During a physics lab, a plastic strip was rubbed with cotton and became positively charged.