There are several time intervals associated with the moon. The moon orbits the Earth with a period of <1> days with respect to the stars which is known as the <2> period. The moon rotates with a period of <3> days. The cycle of lunar phases has a period of <4> days which is known as the <5> period.
When the moon is seen as completely dark from the earth the phase is said to be <6>. $time later the phase will be <7> and the moon will be on the meridian at <8>. When the moon gets to be $phase it will rise at <9> and set at <10>.@ qu.1.1.algorithm= $num1 = rint(2); $time = switch($num1,"One week","Two weeks"); $goodAnswer1 = switch($num1,"first quarter","full"); $badAnswer1 = switch($num1,"full","first quarter"); $goodTime1 = switch($num1,"6 pm","midnight"); $badTime1 = switch($num1,"midnight","6 pm"); $num2 = rint(2); $phase = switch($num2,"third quarter","waning crescent"); $goodRise1 = switch($num2,"midnight","3 am"); $badRise1 = switch($num2,"3 am","midnight"); $goodSet1 = switch($num2,"noon","3 pm"); $badSet1 = switch($num2,"3 pm","noon"); @ qu.1.1.blank.1=27.3,28,29.5,25@ qu.1.1.blank.2=sidereal,synodic,retrograde,cyclic@ qu.1.1.blank.3=27.3,28,29.5,25@ qu.1.1.blank.4=29.5,27.3,28,25@ qu.1.1.blank.5=synodic,sidereal,retrograde,cyclic@ qu.1.1.blank.6=new,first quarter,full,last quarter@ qu.1.1.blank.7=$goodAnswer1,$badAnswer1,waxing gibbous,waning gibbous@ qu.1.1.blank.8=$goodTime1,$badTime1,9 pm,3 am@ qu.1.1.blank.9=$goodRise1,$badRise1,9 pm,6 am@ qu.1.1.blank.10=$goodSet1,$badSet1,9 am,6 pm@ 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.1.2.mode=Blanks@ qu.1.2.name=Lunar Period/Phases 2@ qu.1.2.editing=useHTML@ qu.1.2.question=
There are several time intervals associated with the moon. The moon orbits the Earth with a period of <1> days with respect to the stars which is known as the <2> period. The cycle of lunar phases has a period of <3> days which is known as the <4> period. The moon rotates with the <5> period.
When the moon is seen as completely dark from the earth the phase is said to be <6>. $time later the phase will be <7> and the moon will be on the meridian at <8>. When the moon gets to be $phase it will rise at <9> and set at <10>.@ qu.1.2.algorithm= $num1 = rint(2); $time = switch($num1,"One week","Two weeks"); $goodAnswer1 = switch($num1,"first quarter","full"); $badAnswer1 = switch($num1,"full","first quarter"); $goodTime1 = switch($num1,"6 pm","midnight"); $badTime1 = switch($num1,"midnight","6 pm"); $num2 = rint(2); $phase = switch($num2,"third quarter","waning crescent"); $goodRise1 = switch($num2,"midnight","3 am"); $badRise1 = switch($num2,"3 am","midnight"); $goodSet1 = switch($num2,"noon","3 pm"); $badSet1 = switch($num2,"3 pm","noon"); @ qu.1.2.blank.1=27.3,28,29.5,25@ qu.1.2.blank.2=sidereal,synodic,retrograde,cyclic@ qu.1.2.blank.3=29.5, 27.3, 28, 25@ qu.1.2.blank.4=synodic,sidereal,retrograde,cyclic@ qu.1.2.blank.5=sidereal,synodic,cyclic,libration,retrograde@ qu.1.2.blank.6=new,first quarter,full,last quarter@ qu.1.2.blank.7=$goodAnswer1,$badAnswer1,waxing gibbous,waning gibbous@ qu.1.2.blank.8=$goodTime1,$badTime1,9 pm,3 am@ qu.1.2.blank.9=$goodRise1,$badRise1,9 pm,6 am@ qu.1.2.blank.10=$goodSet1,$badSet1,9 am,6 pm@ 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@