"Human Understanding of the Universe" PPT courseware

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"Human Understanding of the Universe" PPT courseware

Part One: Classroom Exercises

1. Ancient humans' understanding of the universe took a long time, and each nation had its own understanding and imagination of the universe.

2. From "geocentric theory" to "heliocentric theory"

(1) In the 2nd century AD, Greek scientist _______ founded the "geocentric theory" and proposed that ______ exists in the universe as a _____, and the earth is the ______ of the universe.

(2) In the 16th century, Polish astronomer ________ established the "heliocentric theory". He believed that ________ was the center of the universe and that the earth and planets revolved around the sun.

3. Evidence that the universe originated from the Big Bang cosmology - _____________. Through studying the spectra of galaxies, American astronomer Hubble discovered that the motion of galaxies has the following characteristics: all galaxies are in _________; the farther a galaxy is from us, the faster its recession speed is; the distance between galaxies is constantly changing __________.

4. The Big Bang cosmology is a widely accepted theory of the origin of the universe. The Big Bang cosmology holds that about _________ years ago, the entire universe we live in was squeezed into a "primordial fireball" with extremely high _______ and _______. The universe was born in the explosion of this big fireball. The expansion of the universe caused by explosions continues today and will continue to occur.

PPT on human understanding of the universe, part 2: classroom knowledge points

Knowledge point 1: Ancient people’s view of the universe

1. (4 points) The evidence for the origin of the universe is ( )

A． Hubble's lawB. Old Testament "Genesis"

C. The myth of Pangu creating the world D. The legend of Nuwa mending the sky

Knowledge point 2: From geocentric theory to heliocentric theory

2. (4 points) The objective basis for ancient people to form the idea of ​​"geocentrism" is ()

A． The sun, moon and stars rise in the east and set in the west

B. the sun will shine

C. The human world should be located between heaven and hell

D. Meteors will fall to the ground

3. (10 points) The picture shown is a model diagram of the "_________" universe system. This theory believes that _______ is the center of the universe, and ______ and ______ rotate around _______. The emergence of this theory challenged the prevailing views at the time. The “_______” of dominance.

Knowledge point 3 Modern cosmology

4. (4 points) The most important evidence for modern cosmology is ( )

A． Black hole theory proposed by Hawking

B. All galaxies are moving away from us. The farther away a galaxy is from us, the faster it moves.

C. The universe was created by an ancient "god"

D. After the balloon is inflated, it continues to expand, and the distance between the small dots on the balloon continues to increase.

5. (4 points) At present, the big bang cosmology has been accepted by most scientists, and its main views are ( )

A． The age of the universe is approximately 13.7 billion years

B. The universe was squeezed into a "primordial fireball" with extremely high density and temperature

C. The universe was born in an explosion and continues to expand

D. All the above statements are

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"Human Understanding of the Universe" PPT:

"Human Understanding of the Universe" PPT Part One Content: Geocentric Theory and Heliocentric Theory Do you know how the universe was born? Will the universe finally come to an end? Since ancient times, what has been mankind’s understanding of the universe? From geocentric theory to heliocentric theory. During the Warring States Period,...

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Update Time: 2024-10-20

This template belongs to science courseware Zhejiang Education Edition Ninth Grade Science Volume 2 industry PPT template

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