29.9 Flashcards
sphere
is a round three-dimensional object. the surrealistic m
ellipse
is an elongated, closed curve with two foci
what are 2 factors that effect gravitational pull
mass and distance
distabce along equater and the pull ptp nmp0uoll
26 miles
what does the magnetic feild protect earth from
sun rays
which magnetic pull if located in the hemisphere
south magnetic pull
at what degree is the actions tilted
11.7
can magnet pulls flip flop
yes
what is the large scale movement where the magnetic pulls flip
magnetic reversals
how often do magnetic reversals happen
200,000
when was the last magnetic reversal
700.080 years ago
with in earth magnetic pher what deflects harmfull radiation
the magnetopher
what are the scientific names of the souther and norther ligths
aurora borealis and aourora austalis
hoe are the aroras created
charges partials from the sun and collide with atoms in the atmosphere
what month id th eearth closesdt to the sun
jamuary