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What is Newton’s Law of universal gravitation formula
Fg=Gm¹m¹/r²
What does the field theory allocate
the gravitational force on an object to the presence of a gravitational speed
what is linear motion
when an object released from high distance falls to the ground, the earth pulls on the object
what is circular motion
moon stays in orbit because of the Earth’s gravitational pull
What does gravity provide to keep something in its orbit
centripetal force
what is a free falling object
an object which is only under the influence of gravity
what is gravity
an attractive force that affects anything with mass
what is weight
a name given to a gravitational force exerted by a planet moon or an object
How does the earth’s gravitational force pull on the moon? (in steps)
1)creates a gravitational field around the moon
2)the gravitational force acts over the distance, separating the earth and the moon
What is the earth’s field like?
it is radial (in all directions)
how to differentiate between weak field lines and strong field lines
weak= wider distance between each like
strong=lines closer together
what does a neutral point between the earth and moon’s gravitational field tell us
the net gravitational point is 0
what is newtons’s law of gravitation
2 masses that are attracted to each other because of a force
What does Newton’s 3rd law say?
2 objects with mass will face and equal and opposite force from each other
what does newton’s law of gravitation say
1) force is directly proportional to mass m1 and m2,when force increases mass increases
2) when the earth’s force of gravity travels into space, it weakens with distance, so the force is inversely proportional to the distance between objects
How to:
quadruple Force
double force
quarter the force
double both masses
double one of the masses
double distance between masses
What is G in gm1m2/r2 and why is G not as significant sometimes
G is the universal constant of gravitation (6.672×10’11 Nm2kg-2) and G is not as significant sometimes because its value is small, so for G to be more significant, at least 1 of the masses have to be large (moon sized for example)
