SPACE MATH 1 pdf - ER - Nasa

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Teacher’s Guide 422712Question 1 - What is the total number of individual events involved in this sample?Answer: There are 22 flare events, 12 CME events and 7 combined events for a total of 41 solar‘storm’ events of all three kinds.Question 2 - What does the overlapping part of the diagram represent?Answer: It represents the number of events where both Halo CMEs and solar flares are involved in asolar storm.Question 3 - Based on this data, what is the probability of a flare occurring?Answer: Out of the 41 events, a flare will occur with a probability of (22/41) x 100% = 53.7 % of thetime.Question 4 - What is the probability of a CME Halo occurring?Answer: Out of the 41 events, a CME will occur (12/41) x 100% = 29.3%Question 5 - What fraction of the time do flares and a CMEs occur at the same time?Answer: Of the 41 events, both flares and CMEs happen (7/41) x 100% = 17.0% of the time.Question 6 - In your own words, what would be your answer to the question?Answer: Solar flares hardly ever occur at the same time as CMEs (17% of the time) and so the reasonthat CMEs happen probably doesn't usually have anything to do with solar flares.Exploring Space Mathematicshttp://image.gsfc.nasa.gov/poetry
Name ________________________________ 5Sunspots are some of the most interesting, and longest studied, phenomena on the sun’s surface.The table below shows the area of a sunspot. In comparison, the surface area of Earth is ‘169’ unitson the sunspot scale. The table also shows the brightest flare seen from the vicinity of the sunspot sbeginning November 6, 2004. Flares are ranked by their brightness ‘C’, ‘M’ and ‘X’ with M-classflares being 10x more luminous that C-class flares, and X-class flares being 10x brighter than M-class flares.Date Spot # Area FlareNov 6 #696 820 MNov 7 #696 910 MNov 8 #696 650 XNov 10 #696 730 MNov 11 #696 470 XDec 2 #708 130 MDec 3 #708 150 MDec 9 #709 20 CDec 29 #713 150 MDec 30 #715 260 MDec 31 #715 350 MJan 1 #715 220 MJan 2 #715 180 XJan 4 #715 130 CJan 10 #719 100 MJan 14 #718 160 CJan 15 #720 1540 MJan 16 #720 1620 XJan 17 #720 1630 MJan 18 #720 1460 XJan 19 #720 1400 MDuring the 75 day time periodcovered by this table, there were atotal of (720-696=) 24 cataloguedsunspots. The table shows only thosecatalogued sunspots that were activein producing flares during this time.Sunspot areas are in terms ofmillionths of the solar hemispherearea, so ‘1630’ means 0.163% of theSun’s face. Earth’s area = 169millionths by comparison!Sunspot and solar flare data from NOAASWN data archive athttp://www.sec.noaa.gov/Data/index.htmlQuestion 1: Construct a pie chart for the X, M and C-class flare data. During this 75-day period, whatpercentage of flares are X-class?Question 2: What percentage of sunspots produce X-class flares?Question 3: What percentage of sunspots did not produce any flares during this time?Question 4: What seems to be the minimum size for a sunspot that produces an X-class flare? An M-class flare? A C-class flare?Question 5: If the area of Earth is ‘169’ in the sunspot units used in the above tables, what are themaximum and minimum size of the sunspots compared to the area of Earth?Exploring Space Mathematicshttp://image.gsfc.nasa.gov/poetry
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