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CluesClues1.1. This rubbing action applies a force which makes This rubbing action applies a force which makes
insulators become charged.insulators become charged.2.2. This is what happens when like (the same) charges This is what happens when like (the same) charges
are close together.are close together.3.3. This is what happens when opposite charges come This is what happens when opposite charges come
together.together.4.4. This allows electrons to move through it.This allows electrons to move through it.5.5. This does not allow electrons to move through it.This does not allow electrons to move through it.
1 FF RR II CC TT II OO NN
2 RR EE PP EE LL
3 AA TT TT RR AA CC TT
4 CC OO NN DD UU CC TT OO RR
5 II NN SS UU LL AA TT OO RR
CluesClues1.1. This rubbing action applies a force which makes This rubbing action applies a force which makes
insulators become charged.insulators become charged.2.2. This is what happens when like (the same) charges This is what happens when like (the same) charges
are close together.are close together.3.3. This is what happens when opposite charges come This is what happens when opposite charges come
together.together.4.4. This allows electrons to move through it.This allows electrons to move through it.5.5. This does not allow electrons to move through it.This does not allow electrons to move through it.
Lesson.1: Lesson.1: Static ElectricityStatic Electricity
ObjectivesObjectives State how an object gains an electrostatic State how an object gains an electrostatic
charge.charge. State which type of materials can gain a State which type of materials can gain a static charge through friction.static charge through friction. Explain the experimental observations using Explain the experimental observations using
your knowledge of electrostatics.your knowledge of electrostatics.
P.4 Radiation for LifeP.4 Radiation for Life
Static Electricity : Static Electricity : Charging by frictionCharging by friction
Some materials become Some materials become
positive when rubbed positive when rubbed
giving electrons to the cloth.giving electrons to the cloth.
The charge of the cloth is equal and opposite to the The charge of the cloth is equal and opposite to the charge of the rod.charge of the rod.
Some become negative Some become negative
taking electrons from the taking electrons from the
cloth.cloth.
Static Electricity : Static Electricity : Law ofLaw of ChargesCharges
Like charges repelLike charges repel
Unlike charges attractUnlike charges attract
Learning Objectives
• Describe and recognise that insulating materials can become charged when rubbed with another insulating material.
• State that there are two kinds of charge:positive;negative.
• State and recognise that like charges repel and unlike charges attract.
• State and recognise that electrostatic phenomena are caused by the transfer of electrons.
• Describe static electricity in terms of the movement of electrons:a positive charge due to a lack (or loss) of electrons;a negative charge due to an excess (or gain) of electrons.