"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 2

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"Magnetic Phenomena: Magnetic Field" Electricity and Magnetism PPT Courseware 2

【Magnetic phenomena review】

1. The property of matter such as the ability of magnets to _________ is called magnetism. Objects with _______ are called magnets.

2. Magnetic pole: The magnetic ______ part of a magnet.

(1) South Pole: the end pointing to ______ (or ______ pole) when stationary

(2) North Pole: the end pointing to ______ (or ______ pole) when stationary

3. The interaction rules between magnetic poles:

Magnetic poles with the same name ______ each other, and magnetic poles with different names ______ each other.

4. Magnetization: Some objects become

The phenomenon of obtaining ______

5. Properties of magnets: (1) ______ (2) ______

【Magnetic Phenomenon Application】

1. What other magnetic phenomena have you discovered in life?

2. There are four small squares in the small box on the table: copper, aluminum, iron and wood. Can you pick out the iron without touching it with your hands?

3. How to distinguish the N pole and S pole of a small magnetic needle?

Explore: Magnetic Field Direction of Bar Magnets

Question 1 What is the direction of the magnetic field at a certain point around the bar magnet?

Solution: Place a small magnetic needle at this point and observe the direction of the small magnetic needle.

Question 2 What is the direction of the magnetic field at more points around the magnet?

Solution: Place the small magnetic needle at more points around the magnet, and record the direction of the N pole when the small magnetic needle is stationary.

Question 3 Do the magnetic field directions at other locations have such a pattern?

Solution: Place more small magnetic needles at more positions in the magnetic field, and record the direction of the N pole when the small magnetic needles are stationary.

3. Geomagnetic field

Study the geomagnetic field on your own and think about the following questions:

1. What is the geomagnetic field? What does it look like?

2. Where are the geomagnetic north and south poles?

3. What is magnetic declination? Who discovered it first?

【Feedback Exercise】

1. The magnetic field that exists around the earth is called ______. The shape is similar to ______.

2. The magnetic north pole is near ____________,

The geomagnetic south pole is near ____________.

3. Scholars from the Song Dynasty in my country first discovered that the N and S poles of the geomagnetic field do not coincide with the geographical poles, and there are ____.

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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 5:

"Magnetic Phenomenon: Magnetic Field" Electricity and Magnetism PPT Courseware 5 Teaching Objectives Knowledge and Ability 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 there is a magnetic field around a magnet..

"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...

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Update Time: 2024-09-23

This template belongs to Physics courseware People's Education Edition Ninth Grade Physics Complete Book industry PPT template

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