Question

Almost everything in the universe orbits around a central object. The planets orbit the sun and moons orbit planets. The force MOST responsible for these orbits is
A) gravity.
B) inertia.
C) strong force.
D) electromagnetic.

Answer 1

It's Not gravity because gravity would pull all the planets down.and there would be no orbit.That's just a quick hint.so you know that can't be your answer.

Answer 2

strong force?

Answer 3

Correct.

Answer 4

^^

Answer 5

Good Job Your Getting It Now.

Answer 6

that was wrong

Answer 7

Hey it is gravitational force responsible for the motion of these heavenly bodies

Answer 8

The moon revolves around the earth because earths gravitational force binds it to do orbital motion

Answer 9

of course the answer is gravity
strong force is a force that affects subatomic particles.

Answer 10

The answer would be gravity. Extra: If you wanted to find the orbital speed: \[V_{t} = \sqrt{G \frac{ m }{ r }}\]Vt=orbital speed
\[G=6.73 \times 10^{-11}\]
m = Mass of Central object
r = distance from the center of the object including the radius of the planet.

If you wanted to find the orbital period:
\[T=2\pi \sqrt{\frac{ r ^{3} }{ Gm }}\]
T = Orbital period or time
Pi=3.14
r= distance from the center of the object including the radius of the planet.
\[G=6.73 \times 10^{-11}\]
M=Mass of the central object or planet.