Earth’s Motions Earth moves through space in 2 major ways: ROTATION REVOLUTION and
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Earth’s Motions
Earth moves through space in 2 major ways:
ROTATION
REVOLUTION
and
ROTATION
Earth spinning on its axis is called
The is an imaginary line
passing through Earth’s center
through the North and South
The North Pole points toward
the star (the North Star)
The axis is tilted
rotation.
“AXIS”
poles.
Polaris
23.5o
DAY AND NIGHT
rotation
(In the Northern Hemisphere)
The sun and stars rise in the and set in the
.
Time of Complete Rotation = ~
Speed at Equator = ~1 mile every
= miles per hour
Counter-clockwise
East
West
24 hours
3 seconds 1,038
Revolution
The movement of one object around another is
called revolution.
One complete revolution of Earth around the sun
is called a year
1 revolution = 365.25 Days (LEAP YEAR?)
Rate of Revolution = 66,000 mph
Earth revolves around the sun in a path called its
orbit (Counterclockwise direction).
Earth’s orbit is not a circle – it is an ellipse (a
circle that is longer than it is wide)
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