Earth Rotating
How do the planets go around the sun?
Orbit
Seasonal differences in temperature depends on what?
The tilt on the Earth's axis
Who discovered Gravity in the 60's?
Isaac Newton
Who started the idea of inertia?
Isaac Newton
In Kiruna and Sweden area what month does the sun never set?
June
What is the line that passes through the Earth going from the North Pole from to the South Pole?
The Axis
During what season is the Northern Hemisphere tilted toward the sun?
Summer
What did Newton hypothesize?
He hypothesized that gravity is the same thing that keeps people on the ground and keeps the moon next to earth.
What keeps the moon from leaving earth in a straight line?
Gravity
What is a solstice?
It is when either the Southern and the Northern Hemisphere is at its strongest tilt towards the sun.
What direction does earth rotate?
East
What month is the ellipse closest to the sun?
January
The masses of the objects and the distance between them.
What keeps the Earth from crashing into the sun?
Inertia
What does equinox stand for?
Equal Night
What is Earths movement on the axis called?
revolution
What two months does the sunlight shine equally on both hemispheres?
March and September
If the distance between earth and the ground doubles how much more gravity will pull you down?
25%
Why does the moon stay in a circular orbit?
Gravity and Inertia
If a solstice happens around December 22 in the Northern hemisphere when does it happen in the Southern hemisphere?
On the opposite date.
How long does it take for the Earth to rotates around once?
One hour
What degree is the Earth tilted at?
23.5 degrees
What percentage less would you weigh on the moon than on Earth?
16%
How many planets orbit our sun?
8 (eight)
Around when do Northern and Southern hemispheres' equinoxes occur?
Around September 22 and March 21