"Magnets Are Magnetic" Magnet PPT Courseware 2

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"Magnets Are Magnetic" Magnet PPT Courseware 2

Who is a magnet's best friend?

Glass beads, copper sheets, aluminum sheets, iron nails, springs

Small steel balls Wooden pieces Paper Eraser Cloth

Paper clip pencil ruler rubber gloves

Experiment record sheet (1)

1. Mark “√” for objects that can be attracted by magnets, and mark “×” for objects that cannot be attracted by magnets:

Four-person group discussion:

1. What do objects that can be attracted by magnets have in common?

2. What characteristics do objects that cannot be attracted by magnets have in common?

We call the property of magnets that can attract objects made of iron and other materials magnetism.

The scientific way to solve problems is ＿＿＿＿

A. Confirm or revise original ideas

B. Prediction

C. Experimental test

Fierce eyes and golden eyes make a judgment:

The coins are quarreling over who is a member of the "Iron Family", please ask the judge to rule for them!

Distinguish the fine points clearly:

Wang Qiang's father went out for something. At this time, an uncle brought a bag of items to sell. He said that they were all iron products. Wang Qiang was dumbfounded. How should we distinguish iron products from non-iron products? Please tell me. Help him think of a good way.

think:

Magnets attract iron through aluminum sheets, cloth, thin wood chips, gloves and other objects. What do you find?

Discover

The attraction of magnets can work without touching iron objects;

Magnets can attract iron through thin objects, but cannot attract iron through objects that are too thick;

The magnetic force of a magnet is related to the distance. The magnetism is strong when it is close, and the magnetism is weak when it is far away.

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"Magnets are Magnetic" Magnet PPT download:

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"Magnets are Magnetic" Magnet PPT:

"Magnets Are Magnetic" Magnet PPT Part One Content: What objects can magnets attract? What objects can magnets attract and what objects cannot they attract? How do we test our opinions? Which of the following objects are made of iron? First use observation method to identify, and then...

"Magnets Are Magnetic" Magnet PPT Courseware 3:

"Magnets Are Magnetic" Magnet PPT Courseware 3 Why can magnets attract iron? Most substances are composed of molecules, molecules are composed of atoms, and atoms are composed of atomic nuclei and electrons. Inside an atom, electrons are constantly spinning and orbiting the nucleus. electricity..

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Update Time: 2024-09-30

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

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