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Ch26.1TheSun
The Sun's features, structure, and nuclear fusion
| Question | Answer |
|---|---|
| Sunspots | darker cooler regions of the sun |
| Solar Cycle | Pattern of sunspot activity that occurs in on a 11 year cycle (average). Time between solar maximum to solar maximum. |
| Solar Maximum | A year with a peak (high) number of sunspots. |
| Solar Minimum | A year with few or no sunspot activity. |
| Solar Prominence | Loop of hydrogen gas projecting from the sun. |
| Solar Flare | X-rays and particles blasted off the sun. |
| Solar Wind | A stream of electrically charged particles from the sun. |
| Which layer of the sun does nuclear fusion take place? | Core |
| Which layer of the sun is the hottest? | Core |
| Radiation zone (CPE only) | Dense middle layer of the sun; energy is transmitted as wavelengths that are absorbed and emitted. |
| Convection zone (CPE only) | Layer of the sun where plasma moves in loops (heating up and rising; cooling off and sinking) |
| Photosphere (CPE only) | Surface layer of the sun that gives off visible light. |
| Corona | Thin, wispy outer layer of the sun; only visible during eclipse; solar wind extends from this layer. |
| Nuclear Fusion | The process that releases energy in stars; The nuclei of hydrogen atoms to make helium atoms and release energy. |
| What is the last element to be made in star cores by fusion? | Iron |
| What happens to stars when iron is make their cores? | Stars collapse or explode |
Created by:
burnsie
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