Gravity and Inertia
What forces work together to keep planets in orbit? PICK TWO ANSWERS!!!
Gravity and Inertia
is Geocentric sun-centered or earth-centered?
Earth-centered
What spiral do we live on in our galaxy?
The Orion Spur
If there were only Inertia and not Gravity, what would happen?
The planet would be pulled out into space.
Is heliocentric sun-centered or earth-centered?
Sun-centered
What is the name of our galaxy?
The Milky Way
When a _____ enters Earth's atmosphere, it is called a _________.
meteoroid,meteor
What does the earth rotate on?
It's axis
If there were only gravity and no Inertia, what would happen?
the planet would be pulled into the sun and would explode
Who helped carry on the Heliocentric theory?
Galileo
What is the smallest planet in our solar system?
Mercury
Asteroids are made up of _____ and ____.
rock and metallic materials
What force does the sun have that keeps planets orbiting around it?
Gravity
Who created the Geocentric theory?
Plato
What is the biggest planet in our solar system?
Jupiter
This super celestial object is often called a "dirty snowball"?
comets
Earth is the _____ planet from the sun.
third
What force keeps planets moving at a steady pace in the same direction forever?
Inertia
Who created the Heliocentric theory?
Aristotle
What are all the planets in order?
Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus, Neptune
Earth is _____ astronomical units from the sun.
one astronomical unit