| Category | Format | Size |
|---|---|---|
| People's Education Edition Ninth Grade Physics Complete Book | pptx | 6 MB |
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 5
Description
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 5
teaching objectives
knowledge and abilities
1. Know the magnet's iron (cobalt, nickel) attraction and directivity. Know the magnetic poles and the interaction between them.
2. Know what magnetization is and how to magnetize it.
3. Know that a magnetic field exists around a magnet. Knowing that the magnetic field lines can be used to vividly describe the magnetic field, and knowing how the direction of the magnetic field lines is defined.
4. Know that there is a magnetic field around the earth and the north and south poles of the geomagnetic field.
Process and Method
1. Discuss related magnetic phenomena through students’ personal experience and teacher-student communication.
2. Let students understand the development history of compasses and the principle of magnetization through multimedia pictures and film and television scenes.
Emotional attitudes and values
Through the invention of the compass and the discovery of magnetic declination, students' patriotic awareness is enhanced.
magnetic phenomena
Magnetism: The property of attracting iron, cobalt, nickel and other substances.
Pole: The most magnetic part of a magnet.
A magnet has only two magnetic poles.
North and South Pole: The magnetic pole that points to the south pole (S pole) when a freely rotating magnet is at rest is called the south pole (S pole), and the magnetic pole that points to the north is called the north pole (N pole).
Between magnetic poles: Magnetic poles with the same name repel each other, while magnetic poles with different names attract each other.
Magnetization
Definition: The process of making a non-magnetic object acquire magnetism is called magnetization.
illustrate:
①Only magnetic materials such as iron, cobalt, and nickel can be magnetized.
②After magnetization, the end close to the magnet is magnetized into a different magnetic pole.
③The magnetism of steel and other objects is not easy to disappear after being magnetized. The magnetism of iron and other objects is easy to disappear after being magnetized.
magnetic field
Magnetic field: A magnet has a powerful effect on the magnetic material around it, indicating that there is an invisible and intangible substance around it. This substance is called a magnetic field.
The basic property of the magnetic field is to produce magnetic force on the placed magnet.
direction of magnetic field
In physics, the direction of the north pole when the small magnetic needle is stationary is defined as the direction of the magnetic field at that point.
Common magnetic field lines (1)
Magnetic field lines of bar magnet
Magnetic field lines of hoof magnet
Common magnetic field lines (2)
Magnetic field lines when magnetic poles with the same name are close to each other
Magnetic field lines when magnetic poles with different names are close to each other
Keywords: electricity and magnetism teaching courseware, magnetic phenomena and magnetic field teaching courseware, New People's Education Edition ninth-grade physics PPT courseware, ninth-grade physics slide courseware download, electricity and magnetism PPT courseware download, magnetic phenomena and magnetic field PPT courseware download, .ppt format
For more information about the PPT courseware "Electricity and Magnetic Phenomenon and Magnetic Field", please click the Electricity and Magnetism ppt Magnetic Phenomena and Magnetic Field ppt tab.
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 6:
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 6
Learning objectives 1. Knowledge and skills: Know the concepts of magnetism, magnets, and magnetization; know the regulations of magnetic poles; know the rules of interaction between magnetic poles. (2) Know that there is a magnetic field around the magnet and that the magnetic field has directionality. Know the magnetic field lines...
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 4:
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 4 1. Magnetism: 1. Magnetism: Objects have the property of attracting iron, cobalt, nickel and other substances. 2. Magnet: A magnetic object. 3. Classification of magnets: temporary magnets, artificial magnets, permanent magnets, natural...
"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 3:
"Magnetic Phenomenon and Magnetic Field" Electricity and Magnetism PPT Courseware 3 1. Magnetic Phenomenon At the beginning of the 1st century AD, Wang Chong, a scholar of the Eastern Han Dynasty, recorded in "Lunheng" that "Sinan's ladle, thrown into the ground, is a guide." The Chinese have long been Use a compass (compass) to indicate direction during navigation. 1. Magnetism ..
File Info
Update Time: 2024-07-29
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