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Qingdao Edition Fourth Grade Science Volume 1	pptx	6 MB

"Why Apple Falls" PPT

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Upload Time: 2024-10-31

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Description

"Why Apple Falls" PPT

Part One: Gravity

Any object on or near the Earth is affected by the Earth's gravity. The force exerted on objects due to the attraction of the earth is called gravity, and its direction is vertically downward.

Usage and precautions:

(1) Pinch the lifting ring tightly with your hands to make the cylinder vertically downward; adjust the pointer to the 0 scale before observing. Adjustment method: Rotate the lifting ring.

(2) When reading, the line of sight should be level with the pointer.

(3) Suggestion: Before measuring, each student in the group should gently pull the iron hook to feel the force of 1 Newton. During measurement, if you find that the gravity of the object being measured may exceed the measurement range of the dynamometer, stop the test to avoid damaging the dynamometer.

(4) Division of labor and cooperation, select the objects to be measured. After measuring, fill in the record sheet.

Part Two: Classwork

homework buffet

Think about other examples in life where gravity is used or overcome, and conduct research in groups after class.

Keywords: Free download of Qingdao version of fourth-grade science PPT courseware, first volume, why Apple landed PPT download, .PPT format;

For more information about the "Why Apple Landed" PPT courseware, please click the "Why Apple Landed" ppt tag.

"Why Apple Fell" PPT download:

"Why the Apple Falls to the Ground" PPT Download Part One: Understanding Gravity and the Dynamometer Newton's explanation is that any object on or near the earth will be affected by the earth's gravity. The force exerted on the object due to the earth's attraction is called gravity. The square of gravity...

"Why Apple Fell" PPT courseware:

"Why the Apple Falls" PPT Courseware Part One: The Earth's Gravity It is said that one day in 1666, Newton was lying in the garden meditating. Suddenly, a ripe apple fell from the tree and hit him on the head. He thought of a question: Why...

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Update Time: 2024-10-31

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Why Apple landed ppt

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"Why Apple Falls" PPT