Activity 6.5.2 Daylight Hours Over the course of the year, the amount of daylight changes each day. To determine the number of daylight hours each day, the time of sunrise was subtracted from the time of sunset. of daylight hours for Boston, Massachusetts, latitude 42 degrees north. Here is a year’s worth Date Day of the Hours of Date Day of the Year Hours of year Daylight Daylight 1/2 2 9.2 7/5 186 15.2 10 9.3 194 15.0 18 9.6 202 14.8 2/3 26 9.8 210 14.5 34 10.1 8/6 218 14.3 42 10.4 226 13.9 50 10.8 234 13.6 3/7 58 11.1 242 13.3 66 11.5 9/7 250 12.9 74 11.9 258 12.5 82 12.3 266 12.1 4/8 90 12.7 10/1 274 11.8 98 13.0 282 11.4 106 13.4 290 11.0 5/2 114 13.8 298 10.7 122 14.1 11/2 306 10.3 130 14.4 314 10.0 138 14.8 322 9.6 6/3 146 14.9 330 9.5 154 15.1 12/4 338 9.3 162 15.2 346 9.2 170 15.3 354 9.1 178 15.2 12/28 362 9.2 Plot the data using a spread sheet, your calculator stats menu, or by hand on graph paper. Assume that the number of daylight hours will be the same next year. Plot a two-year cycle by repeating the data for another year.
Activity 6.5.2 Daylight Hours Over the course of the year, the amount of daylight changes each day. To determine the number of daylight hours each day, the time of sunrise was subtracted from the time of sunset. Here is a year’s worth of daylight hours for Boston, Massachusetts, latitude 42 degrees north. Date Day of the year Hours of Daylight Date Day of the Year Hours of Daylight 1/2 2/3 3/7 4/8 5/2 6/3 2 10 18 26 34 42 50 58 66 74 82 90 98 106 114 122 130 138 146 154 162 170 178 9.2 9.3 9.6 9.8 10.1 10.4 10.8 11.1 11.5 11.9 12.3 12.7 13.0 13.4 13.8 14.1 14.4 14.8 14.9 15.1 15.2 15.3 15.2 7/5 8/6 9/7 10/1 11/2 12/4 12/28 186 194 202 210 218 226 234 242 250 258 266 274 282 290 298 306 314 322 330 338 346 354 362 15.2 15.0 14.8 14.5 14.3 13.9 13.6 13.3 12.9 12.5 12.1 11.8 11.4 11.0 10.7 10.3 10.0 9.6 9.5 9.3 9.2 9.1 9.2 Plot the data using a spread sheet, your calculator stats menu, or by hand on graph paper. Assume that the number of daylight hours will be the same next year. Plot a two-year cycle by repeating the data for another year.
Activity_6_5_2.docx