§11.3 Conductors and Insulators

• Science
• Upper Secondary (Key Stage 4)

§11.3 Conductors and Insulators

Science - TTO2

Learning Objectives

• Distinguish between conductors and insulators. 
  
• Describe how an insulated conductor can be charged and discharged. 
  
• Explain the process of charging an insulated conductor by induction. 
  
• Explain conductors and insulators using the simple electron model.
  

Time for a Practical!

Open the document attached to the homework in SomToday: 

"§11.3 Conductors and Insulators - Phet Worksheet"

Click the link on the next slide and use the Phet simulation for the practical exercises!

https:

Conductors

Insulators

Paper clip

Pencil

Dog 

Hand 

Dollar 

Coin 

Eraser 

Time for a video!

The video on the next slide will give you a better understanding of conductors and insulators. It also explains how they can be charged and discharged. 

Read §11.3 Conductors and Insulators

Read p. 158 and 159 of your textbook

Time for some practice:

Do Summary Questions p. 159 (Textbook)

Do workbook exercises p. 81 (Workbook)

Any object that charge can pass through is a ...

1. Conductor
2. Insulator

Why do metals conduct electricity?

A positively charged rod is brought close to one end of a neutral metallic plate. What type of charge is induced on the closest side of the plate?

1. Positive
2. Negative
3. Neutral
4. It depends of the separation between the rod and plate

A positively charged sphere A is brought close without touching to a neutral sphere B. Sphere B is touched with a earthed wire. What is the charge on sphere B after the wire is removed?

1. Positive
2. Negative
3. Neutral
4. It depends on the material that sphere B is made of