"Conductors and Insulators" Electrical PPT

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"Conductors and Insulators" Electrical PPT

Part 1: Detecting whether the objects around you are conductive

Among the objects around us, some are easy to conduct electricity and some are not. How can we know the conductivity of an object?

How to test whether a piece of rubber is conductive?

Detection method

1. First predict whether the rubber can pass electric current to make the small light bulb glow, and make a record.

2. Make the two detection heads of the "circuit detector" contact each other to check whether the small bulb emits light.

3. Use two detection heads to touch both ends of the rubber and observe whether the small bulb emits light.

4. Repeat the test once and record whether the small bulb is "on" or "off" during the test.

5. Develop good habits and put the tested equipment in the box on the left.

Organize inspection records

Our team tested a total of ( ) materials.

In the test, there are ( ) materials that can make small light bulbs shine.

There are ( ) materials that cannot make the small light bulb glow during the test.

There are ( ) kinds of materials that our team predicts correctly. These materials are ( ).

There are ( ) kinds of materials that our team predicted incorrectly. These materials are ( ).

Understand conductors and insulators

An object like a copper wire that allows electric current to pass easily is called a conductor.

Objects like plastic that do not allow electric current to pass easily are called insulators.

Let’s talk about which of the materials we choose are conductors? What are insulators?

Conductors and Insulators PPT, Part 2: Insulating Materials for Electrical Equipment in the Classroom

Investigate which electrical equipment in the classroom uses insulation materials.

How to use insulation materials correctly?

Do not wipe with a wet cloth, and do not touch electrical appliances and switches with wet hands.

People and impure water are conductors.

What is the purpose of insulators? What is the use of conductors?

We use conductors to get electricity to where people need it.

We use insulators to stop electricity from going where it isn't wanted.

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For more information about the "Electrical Conductors and Insulators" PPT courseware, please click on the Electrical ppt Conductors and Insulators ppt tab.

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Update Time: 2024-09-22

This template belongs to science courseware Fourth Grade Science Volume 2, Textbook Edition industry PPT template

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