"Electromagnet" energy PPT teaching courseware

Description

"Electromagnet" energy PPT teaching courseware

Part 1: Importing new lessons

Can this long iron nail be turned into a tool that attracts iron like a magnet? What can you do? The teacher can turn it into a magnet, do you believe it?

Electromagnet PPT, part 2 content: new lesson learning

What happens to the compass when the energized coil is brought close to it? What does it mean?

If you wrap a coil around a large iron nail, will the iron nail become magnetized?

Wrap a coil around the iron nail.

Use an insulated wire to wrap 50 to 100 times in one direction around a large iron nail, leaving 10 cm to 15 cm at both ends of the wire as lead wires. Secure both ends of the wire to prevent it from loosening. Polish the wire ends with sandpaper.

What is an electromagnet?

1.Definition: An electromagnet is a solenoid with an iron core.

2.Construction:

Electromagnet PPT, part three: conclusion summary

1. Electromagnets have the basic property of producing magnetism when current is turned on and disappearing when current is turned off.

2. Changing the positive and negative pole connections of the battery or changing the direction of the coil winding will change the north and south poles of the electromagnet.

(Both methods change the direction of the current in the coil).

Electromagnet PPT, Part 4: Classroom Exercises

(1) Multiple choice questions

1. An electromagnet can also be made by winding a coil on ( ).

A. wooden stick B. copper rod C. porcelain bottle

2. After the power is turned off, the electromagnet ( ) attracts the pin.

A. Can B. Can't C. Unable to determine

(2) Judgment questions

1. Both electromagnets and magnets have north and south poles. ( )

2. Wrap the wire around a large iron nail in a certain direction to create an electromagnet. ( )

3. The properties of electromagnets and magnets are exactly the same, there is no difference. ( )

Electromagnet PPT, Part 5: Homework Arrangement

What are the differences between the properties of magnets and electromagnets?

Keywords: Free download of Chinese PPT courseware for the first volume of the sixth grade in the textbook version, electromagnet PPT download, energy PPT download, .PPT format;

For more information about the "Energy Electromagnet" PPT courseware, please click on the Energy PPT Electromagnet PPT tab.

"Electromagnet Electromagnetic Relay" Electricity and Magnetism PPT:

"Electromagnet Electromagnetic Relay" Electricity and Magnetism PPT Part One Content: Knowledge Management 1. Electromagnet composition: It is a solenoid with an iron core, which is composed of a coil and an iron core. There is an iron core in the electromagnet to enhance the magnetism of the electromagnet. Strong magnetism..

"Magnetic Force of Electromagnets (2)" Energy PPT Download:

"Magnetic Force of Electromagnets (2)" Energy PPT Download Part One: Review Introduction An electromagnet is a device composed of a coil and an iron core. The magnetic force of the electromagnet is related to the number of coil turns: the greater the number of coil turns, the greater the magnetic force, and the smaller the number of coil turns..

"Magnetic Force of Electromagnets (2)" Energy PPT:

"Magnetic Force of Electromagnets (2)" Energy PPT Part One: The group tests the selected hypothesis and formulates a group research plan. What are the factors we want to examine (i.e. the conditions that need to be changed)? How to change this condition? For the sake of fairness in the experiment, it should be controlled...

File Info

Update Time: 2024-11-18

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

Preview