9 questions
In our solar system, the sun has 99.8% of the gravitational force because...
It's the hottest planet
That's what Earth orbits
It has the most mass
It's in the center
Why is the Earth and other celestial bodies spherical?
Rocks are circular
The Earth is like a ball
Gravity pulls in a directions evenly
We are pulled in by the sun
Planets that stay in rotation around an object are defined as being in...
a circle
orbit
rotation
a sprial
What two factors influence gravitational force?
Mass and gravity
Distance and weight
Weight and shape
Mass and distance
When two planets become farther apart, or their distance increases, what happens to the gravitational force?
Gravity becomes stronger
Gravity becomes weaker
Gravity stays the same
What path will an object follow if it is not held in orbit by gravity?
The object falls
It follows a circular path
It floats on its own
It follows a straight path
When objects in space are closer to a larger mass object, the velocity (speed) is...
Less
More
the same
none of these
What terms describes Earth's path around the sun?
Elliptical path
Oval path
Disk path
Circular path
What is the name of the scientist that "discovered" gravity? He also wrote the three laws of motion!
Bill Nye
Galileo Galiei
Isaac Newton
Mr. Larson