Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass...
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Transcript of Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass...
![Page 1: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/1.jpg)
Chapter 11
![Page 2: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/2.jpg)
The Sun
average-sized star. 300 000 times more mass than Earth The sun’s mass results in great
pressure and heat at the centre of the Sun cause a thermonuclear reaction
Hydrogen is converted to helium it has enough hydrogen to last another 5
billion years.
![Page 3: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/3.jpg)
The Sun
contains more than 99 percent of all the mass in the solar system
The tremendous radiated energy that is produced keeps Earth warm enough to support life
![Page 4: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/4.jpg)
The Sun Sunspots dark patches on the Sun’s
surface that are slightly cooler, about 3500°C, than surrounding areas
Occasionally, extremely violent eruptions of gas called solar flares also occur. These eruptions can last for a few hours and heat gases to 11 000 000°C.
![Page 5: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/5.jpg)
The Sun
Sun spots and solar flares are associated with Solar wind .
Exposure to solar wind could be fatal for any organism living on Earth.
Earth’s magnetic field deflects most of the solar wind around the planet
![Page 6: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/6.jpg)
The Sun Some of the high-energy particles in solar
wind enter Earth’s atmosphere at the North and South Poles, where they collide with gases in the atmosphere.
aurora borealis and aurora australisNorthern and Southern Lights
![Page 7: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/7.jpg)
The Sun
![Page 8: Chapter 11. The Sun average-sized star. 300 000 times more mass than Earth The sun’s mass results in great pressure and heat at the centre of the.](https://reader036.fdocuments.in/reader036/viewer/2022082518/5697bf9e1a28abf838c94586/html5/thumbnails/8.jpg)
Questions
1-3 , 5 -7, 11 page 397