"Two iron balls hit the ground at the same time" PPT courseware 7

Description

"Two iron balls hit the ground at the same time" PPT courseware 7

learning target

⑴Read the text correctly, fluently and emotionally.

⑵ Cultivate students’ ability to use network resources for independent and cooperative learning.

⑶ Cultivate students' ability to combine reading and writing and express their own opinions on web pages.

⑷ Cultivate students' ability to use network resources, search for information, and process information.

If Aristotle is correct, two outcomes are possible:

If two iron balls are tied together, the slower one will drag the faster one, and the falling speed will be ___ faster than the 10-pound iron ball.

If the two iron balls tied together are considered as a whole, they weigh 11 pounds, and they will fall faster than the 10-pound iron ball.

Trial and error

Two iron balls of different weights fall from a height at the same time and always hit the ground at the same time. The speed at which the iron balls fall has nothing to do with the weight of the iron balls!

publicly confirmed

Some said: "This young man is so bold and wants to find fault with Aristotle!"

Some said: "He won't be stubborn any longer. The truth is ruthless and will embarrass him!"

Expand and extend

Aristotle (384 BC - 322 BC), ancient Greek philosopher and scientist, was the teacher of Alexander the Great. Marx and Engels called him "the most knowledgeable person" in ancient Greek philosophy. He divided science into theoretical science, practical science, and creative science. He has made outstanding contributions in biology, physiology, medicine and other fields.

Galileo Galilei was born in Italy in 1564. He combined Archimedes' buoyancy principle with the lever principle, obtained a precise measurement method, and invented the "hydrostatic balance" to determine the composition of alloys, which attracted the attention of the academic community. In the summer of 1589, he was hired as a professor of mathematics at the University of Pisa at the age of 25. In 1609, after hard work and experiments, he successfully developed the world's first astronomical telescope with a magnification of 33 times. In 1610, Galileo published his "Star Messenger". People said in surprise: "Columbus discovered the New World, and Galileo discovered the new universe."

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For more information about the PPT courseware "Two Iron Balls Landing at the Same Time", please click on the "Two Iron Balls Landing at the Same Time" ppt tag.

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"Two iron balls hit the ground at the same time" PPT courseware 10:

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Update Time: 2024-11-20

This template belongs to Chinese courseware Lu Jiao Edition Chinese for Grade 4 Volume 1 industry PPT template

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