qu.1.topic=fill in blanks@ qu.1.1.mode=Blanks@ qu.1.1.name=Motion of the Earth@ qu.1.1.editing=useHTML@ qu.1.1.question=
The earth rotates on its axis with a period of <1>. We can see evidence for the rotation of the earth in the <2> of stars. The earth revolves about the sun with a period of <3>. We can see evidence for revolution in that different <4> are seen at different times of year. The Earth's rotation and revolution combine to cause stars to rise and set <5> per day.
Seasons are caused by the Earth's <6>. Complete the following table related to the Earth's seasons and sunlight.
| Date | RA | Dec | Direct Ray Latitude |
|---|---|---|---|
| Vernal Equinox | 0h | <7> | <8> |
| Summer Solstice | 6h | <9> | <10> |
| Autumnal Equinox | 12h | <11> | <12> |
| Winter Solstice | 18h | <13> | <14> |
From the data in this table we can estimate that on $date the direct rays of the sun would be hitting at a latitude of <15>. @ qu.1.1.algorithm= $num=rint(4); $date=switch($num,"April 15","May 15","October 15","November 15"); $correctAnswer=switch($num,"10 degrees N","20 degrees N","10 degrees S","20 degrees S"); $wrongAnswer1=switch($num,"20 degrees N","10 degrees S","20 degrees S","10 degrees N"); $wrongAnswer2=switch($num,"10 degrees S","20 degrees S","10 degrees N","20 degrees N"); $wrongAnswer3=switch($num,"20 degrees S","10 degrees N","20 degrees N","10 degrees S"); @ qu.1.1.blank.1=1 day,1 year,1 hour,1 decade@ qu.1.1.blank.2=diurnal motions,rising times,setting times,parallax@ qu.1.1.blank.3=1 year,1 day,1 hour,1 decade@ qu.1.1.blank.4=stars,diurnal motions,eclipses,planets@ qu.1.1.blank.5=4 minutes earlier,4 minutes later,6 minutes earlier,6 minutes later@ qu.1.1.blank.6=obliquity,elliptical orbit,cloud patterns,ocean currents@ qu.1.1.blank.7=0 degrees,+23.5 degrees,-23.5 degrees@ qu.1.1.blank.8=0 degrees,23.5 degrees N,23.5 degrees S@ qu.1.1.blank.9=+23.5 degrees,0 degrees,-23.5 degrees@ qu.1.1.blank.10=23.5 degrees N,0 degrees,23.5 degrees S@ qu.1.1.blank.11=0 degrees ,+23.5 degrees,-23.5 degrees@ qu.1.1.blank.12=0 degrees ,23.5 degrees N,23.5 degrees S@ qu.1.1.blank.13=-23.5 degrees,0 degrees,+23.5 degrees@ qu.1.1.blank.14=23.5 degrees S,0 degrees,23.5 degrees N@ qu.1.1.blank.15=$correctAnswer,$wrongAnswer1,$wrongAnswer2,$wrongAnswer3,0 degrees,23.5 degrees N,23.5 degrees S@ qu.1.1.grader.1=menu@ qu.1.1.grader.2=menu@ qu.1.1.grader.3=menu@ qu.1.1.grader.4=menu@ qu.1.1.grader.5=menu@ qu.1.1.grader.6=menu@ qu.1.1.grader.7=menu@ qu.1.1.grader.8=menu@ qu.1.1.grader.9=menu@ qu.1.1.grader.10=menu@ qu.1.1.grader.11=menu@ qu.1.1.grader.12=menu@ qu.1.1.grader.13=menu@ qu.1.1.grader.14=menu@ qu.1.1.grader.15=menu@ qu.1.2.mode=Blanks@ qu.1.2.name=Motion of the Earth@ qu.1.2.editing=useHTML@ qu.1.2.question=
The earth revolves about the sun with a period of <1>. We can see evidence for revolution in that different <2> are seen at different times of year. The earth rotates on its axis with a period of <3>. We can see evidence for the rotation of the earth in the <4> of stars. The Earth's rotation and revolution combine to cause stars to rise and set <5> per day.
Seasons are caused by the Earth's <6>. Complete the following table related to the Earth's seasons and sunlight.
| Date | RA | Dec | Direct Ray Latitude |
|---|---|---|---|
| Vernal Equinox | <7> | 0° | <8> |
| Summer Solstice | <9> | +23.5° | <10> |
| Autumnal Equinox | <11> | 0° | <12> |
| Winter Solstice | <13> | -23.5° | <14> |
From the data in this table we can estimate that on $date the direct rays of the sun would be hitting at a latitude of <15>. @ qu.1.2.algorithm= $num=rint(4); $date=switch($num,"April 15","May 15","October 15","November 15"); $correctAnswer=switch($num,"10 degrees N","20 degrees N","10 degrees S","20 degrees S"); $wrongAnswer1=switch($num,"20 degrees N","10 degrees S","20 degrees S","10 degrees N"); $wrongAnswer2=switch($num,"10 degrees S","20 degrees S","10 degrees N","20 degrees N"); $wrongAnswer3=switch($num,"20 degrees S","10 degrees N","20 degrees N","10 degrees S"); @ qu.1.2.blank.1=1 year,1 day,1 hour,1 decade@ qu.1.2.blank.2=stars,diurnal motions,eclipses,planets@ qu.1.2.blank.3=1 day,1 year,1 hour,1 decade@ qu.1.2.blank.4=diurnal motions,rising times,setting times,parallax@ qu.1.2.blank.5=4 minutes earlier,4 minutes later,6 minutes earlier,6 minutes later@ qu.1.2.blank.6=obliquity,elliptical orbit,cloud patterns,ocean currents@ qu.1.2.blank.7=0 hours,6 hours,12 hours,18 hours@ qu.1.2.blank.8=0 degrees,23.5 degrees N,23.5 degrees S@ qu.1.2.blank.9=6 hours,12 hours,18 hours,0 hours@ qu.1.2.blank.10=23.5 degrees N,0 degrees,23.5 degrees S@ qu.1.2.blank.11=12 hours,18 hours,0 hours,6 hours@ qu.1.2.blank.12=0 degrees ,23.5 degrees N,23.5 degrees S@ qu.1.2.blank.13=18 hours,0 hours,6 hours,12 hours@ qu.1.2.blank.14=23.5 degrees S,0 degrees,23.5 degrees N@ qu.1.2.blank.15=$correctAnswer,$wrongAnswer1,$wrongAnswer2,$wrongAnswer3,0 degrees,23.5 degrees N,23.5 degrees S@ qu.1.2.grader.1=menu@ qu.1.2.grader.2=menu@ qu.1.2.grader.3=menu@ qu.1.2.grader.4=menu@ qu.1.2.grader.5=menu@ qu.1.2.grader.6=menu@ qu.1.2.grader.7=menu@ qu.1.2.grader.8=menu@ qu.1.2.grader.9=menu@ qu.1.2.grader.10=menu@ qu.1.2.grader.11=menu@ qu.1.2.grader.12=menu@ qu.1.2.grader.13=menu@ qu.1.2.grader.14=menu@ qu.1.2.grader.15=menu@