Scientific Methods
Which step in the scientific method do you observe?
Step 1
Gravity keeps __?____ bodies in orbit around larger bodies
Smaller
Newton used Kepler’s Laws to mathematically explain how gravity behaves.
Law of Universal Gravitation
Planets need two things to keep moving in a orbit
Forward motion-INERTIA
Gravity
Nicknamed the "red planet"
Mars
Scientists that contributed alot to the scientfic method
Sir Isaac Newton
The planets orbit the sun in an ellipse with the sun at one focus
What is Keplers 1st Law
All objects in the universe attract each other through __?___ __?__.
Gravitational Force
Hottest planet of them all....volcanoes and lava everywhere!!!
Venus
Nickname given to planets that are mostly made up of rock, have inner cores and are very dense
Terrestrial Planets
An educated guess
Hypothesis
Planets move ___?____ when they are closer to the sun
Faster
The larger the mass, the ___?___ gravitational force.
stronger
nicknamed the "water planet"
Earth
I rotate on my side
Uranus
A theory that has been tested MANY times!
Law
The name given when a planet is farthest from the sun
Aphelion
The farther apart the objects are, the ___?___ the gravitational force.
weaker
I have a 300 year old storm that seems to never end
Jupiter
The coldest planet
Neptune
collection of charts and results from your experiements
Data
As a planet moves around its orbit, it sweeps out equal areas in equal times.
Keplers 2nd Law
The inward force that causes an object to move in a circular path
Centripetal Force
I look like Earth's moon, with many craters
Mercury
Least dense planet
Saturn