11.2 Flashcards
studying
Earth and other planets do what 2 things around the sun?
revolve and rotate
the imaginary line through the the earth from the North Pole to the South Pole
earths axis
spinning motion of a planet on its axis
rotation
Earth rotates from what to what
west to east
what way do the objects rotate in the sky
opposite direction of earths rotation
when earth is facing towards the sun what is it
day
how many hours does it take for earth to rotate once
24
the movement of 1 object around another
revolution
how long is a revolution
365 days (year)
the path of an object as it revolves around another object in space is called an
orbit
earths path around the sun is an
ellipse
the farther the place is from the equator more its temperatures ———-
vary
earths axis is tilted at an _________
23.5 angle
seasonal differences differ because of earths _______
tilt
there would be no seasons if the axis was straight ______
up
in June the axis is tilted towards the sun which means _________
warmer temperatures (summer)
in December the axis is tilted away from the sun which means __________
colder temps (winter)
what effects the length of days
the tilt of earths axis
2 days of the year in which the sun appears the highest in the sky is a _____________
solstice
solstice occurs when it is at its strongest or weakest tilt towards the sun
strongest
2 days of the year when neither hemisphere is tilted toward or away from the sun
equinox
In the northern hemisphere summer solstice is June __ and winter solstice is December __
21 and 22
(in the southern hemisphere they are the opposite)
during equinox how long is day and how long is night
12 hours for both
solstices occur at______ times in the northern and southern hemisphere
opposite
