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24 Cards in this Set
- Front
- Back
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Rotates once every 25.38 days. |
The suns equator |
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rotate once every 27.8 days. |
Higher latitudes |
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What are the 4 forces found in nature |
1. Gravity 2. Electromagnetic Force 3. Strong Force 4. Weak Force |
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Binds atomic nuclei together |
Strong force |
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Involved in radioactive decay |
Weak force |
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What is the suns lifetime? |
10 billion years |
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The sun can only convert ________ of its mass into energy during the suns lifetime. |
0.07% |
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The energy that is converted during nuclear fusion is in the form of ____________, ___________, and neutrinos. |
gamma rays, positrons, and neutrinos. |
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_____________ are photons that are absorbed by the surrounding gas. This heats the gas. |
Gamma Rays |
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This combines with free electrons and vanish, converting their mass into gamma rays. |
Positrons |
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This is particles that travel at roughly the speed of light and almost never interact with other particles. They carry away from the star about 2% of the energy that is produced. |
Neutrinos |
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The galaxy that we live in is the ________________________________. |
Milky Way Galaxy. |
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What diameter is the milky way galaxy? |
It is over 75 LY in diameter. |
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How many starts does the milky way galaxy contain? |
Over 100 Billion Stars |
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What type of galaxy is the milky way? |
It is a spiral galaxy. |
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they have periods from 1 to 60 days. |
Cepheid Variables. |
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Has a period of about half a day. |
RR Lyrae Variables. |
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The sun transforms ________________ tons of mass into energy every second |
5 Million |
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The sun fuses _________ nuclei to make __________ nucleus |
4 hydrogen, 1 Helium |
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______________ comes from a strong force. |
Nuclear Energy. |
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a nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle with the release of energy. |
Nuclear Fission |
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a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
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Nuclear Fusion |
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The splitting of the spectrum line into several components by the application of magnetic field/ |
Zeeman Effect |
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is seen when different parts of a rotating object move with different angular velocities at different latitudes and/or depths of body and/or in time. |
Differential Rotation |
