0
gravity
not to sure tho
Mark Greenholt
Wiki User
∙ 11y agoThe force of gravity.
Comment: Yes, but "centrifugal force" isn't quite the right scientific term, of course.
Wiki User
∙ 12y agoThe Gravitational Pull
Wiki User
∙ 14y agogravity
not to sure tho
Wiki User
∙ 11y agoGravity helps keep the planets in place.
Wiki User
∙ 11y agoGravity
Add your answer:
Earn +20 pts
Is centripetal force a outward force?
No; "centripetal" implies an inward force.
How does gravity affect the relationship between the sun and the planets?
Yes. It keeps the planets in orbit around the Sun.
What direction does a centripetal force act?
radially inward
How is centripetal force created?
You have a centripetal force whenever you have any force that attracts an object towards the center of its circular movement. In some cases, the centripetal force is what keeps an otherwise free object in a circular (or elliptical) trajectory in the first place - like when the Sun attracts the planets. In other cases - such as in a flywheel - the outer parts pull outwards (because of their inertia), so, by Newton's Third Law, the center of the movement pulls inward, providing the centripetal force. (If the outward pull is too strong, the objects that moved in a circular trajectory will break away.)
Why are forces balanced or unbalanced on planets?
The forces on the planets are not balanced. The gravitational force between the sun and each planet is what keeps the planet in orbit around the sun. If the forces on a planet were balanced, then the planet would sail off in a straight line, and would never be seen or heard from again.
Why do all the planets orbit?
Planets orbit around the Sun because of the Sun's gravitational force, it makes the planets move by its gravitational force.
Are planets pulled into the sun because they are moving?
No they are pulled in to the Sun by the Sun's gravity. Their sideways movement means that this inward pull causes an orbit of the Sun.
What keeps the planets and sun in orbit?
The question probably means "What keeps the planets in orbit around the Sun?" The answer to that is : The Sun's gravitational attraction provides the force needed to keep the planets in orbit. This force doesn't pull the planets any closer to the Sun, but it stops the planets moving away (at a tangent to their orbits) due to their own velocities.
What is the difference between the inner planets and outer plants of the solar system?
Location, location, location. Inner planets = Mars and inward (towards the sun); outer planets = Jupiter and outward (away from the sun).
What from the sun holds the planets in orbit?
The Sun AND its planets attract each other with gravitic force.
Why don't objects in the solar system travel straight?
The gravity of the sun (or whatever object is being orbited) keeps a force pulling the planets inward, allowing them to stay in orbit and not fly off.
Which force keeps venus in orbit around the sun?
Like all other planets and other objects in the solar system, including you, Venus is kept in orbit by the Sun's gravity, which is exacty balanced by its acceleration towards the Sun, which appears as a continuous inward curve towards the Sun.
Which of asteroids the sun moons or planets has the greatest gravitation force?
The Sun.
Why do the planets circle the sun?
gravitational force
Where does force needed to keep planets orbiting the sun come from?
The force is provided by the Sun's gravitational attraction.
Why do all the planets orbit the sun?
Not all the planets orbit the sun - other stars have planets too. But all the planets in our solar system, which is the system of our sun, revolve around the sun; otherwise they would be in other solar systems. All the planets we can see with our naked eye orbit the sun, since the planets orbiting the sun are the only ones close enough to earth to see without a telescope.
What keeps the planets in the Sun's orbit?
Gravitational force, combined with the velocities of the planets. The force from the Sun is pulling the planets toward it, but the velocity of each planet is acting against this. The result is that the planets orbit the Sun. (The question is a bit mixed up, but it seems obvious what it's about.)
