| Category | Format | Size |
|---|---|---|
| Science Edition for Sixth Grade Science Volume 1 | pptx | 6 MB |
"Magical Little Motor" Energy PPT Courseware 2
Description
"Magical Little Motor" Energy PPT Courseware 2
Define “electric motor”
Electric: Moving: Machine:
electric current turning machine
electrical energy power
energized kinetic energy
Machines that generate power using electrical energy
A machine that can rotate when powered on
Is there something familiar? Is this an electric motor?
It turns out this is really a "magic" motor:
When the coil is energized, magnetism is generated, and the coil rotates under the interaction of magnetism.
Detailed structure explanation
1. Among them, the most magical structure is: commutator.
It not only switches on the current, but also changes the direction of the current, allowing the motor to rotate continuously.
2.The direction of the current?
Positive terminal of battery - brush - commutator - coil - commutator - brush - negative terminal of battery
Explore: What factors are related to the rotation speed and direction of the motor?
What factors are related to the rotation speed of the motor?
Current size
number of magnets
Distance between magnet and rotor
What factors are related to the rotation direction of the motor?
direction of current
Magnet's North and South Pole
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For more information about the "Energy Magic Little Motor" PPT courseware, please click the Energy ppt Magic Little Motor ppt tag.
"Magic Little Motor" energy PPT teaching courseware:
"Magical Little Motor" Energy PPT Teaching Courseware Part One: Introduction of New Lessons When our four-wheel drive vehicle is powered on, it will start to move. Students, do you know what makes our car move? ... ... ... Magical little electric motor PPT..
"Magic Little Motor" Energy PPT download:
"Magical Little Motor" Energy PPT Download Part One: New Lesson Learning Why is the rotor structured like this? When power is supplied to the coil from the commutator, you can see that the rotor core can pick up the pins, and the rotor is three electromagnets. Guess: along what direction does the current flow...
"Magic Little Motor" Energy PPT:
"Magical Little Motor" Energy PPT Part One: What's inside the small motor? Observe the disassembled small motor. How many parts does it have? What parts are there in each part? When we see a coil wound around an iron core, we think of an electromagnet. How to verify our conjecture...
File Info
Update Time: 2024-08-06
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