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Basically Gravity. The farther the planet is from the Sun, not only has it a longer distance to travel, but also the slower its speed, as it is less affected by the Suns gravity.

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Why must the inner planets travel faster than the outer planets?

They are closer to the star they circulate around or the other planets and so their centre of gravity is closer, therefore the force is stronger and thus causing their rotation to increase in speed.


What happens to the speed of planets orbiting the sun as you get closer to the sun?

As you get closer to the sun, the speed of planets increases due to the stronger gravitational pull from the sun. This increase in speed is necessary to balance the pull of gravity with the planet's tendency to move in a straight line. This phenomenon is described by Kepler's second law of planetary motion.


How do planets change orbital speed change?

Planets with elliptical orbits are affected by the difference in the strength of the Sun's gravity as they move closer to, or farther away from, the Sun. The only other major effect on planets are the gravity of other planets, notably Jupiter and Neptune. Except for Mars, Ceres, Pluto, and trans-Neptunian planets, the effect is extremely small -- it has resulted in stable orbital resonances between several small outer planets and the planet Neptune.


What are the closets objects in space from the earth not including the moon and sun Are some planets closer than stars?

The closest, apart from odd rocks, are the planets Venus and Mars but their orbits take them far away also. No stars are ever closer, the closest star is 4.2 light years away, while the most remote planet, Neptune, is only 4 light-hours away (that is a distance of 4 hours at the speed of light).


Why do the 4 inner planets revolve around the sun at a faster speed?

The inner planets revolve around the sun at faster speeds because they are closer to the sun, which results in a stronger gravitational pull. This stronger gravitational pull causes the inner planets to move faster in order to maintain their orbits around the sun.

Related Questions

Where in our solar system are the planets which orbit fastest?

The closer planets are to the Sun the faster their orbit speed


Does the speed of planetary orbits increase the closer the planet is to the sun?

Yes, according to Kepler's laws of planetary motion, planets move faster in their orbits when they are closer to the sun. This is due to the gravitational force exerted by the sun, which causes the planet to accelerate as it gets closer.


When two artificial satellite revolve around the earth the one's closer and the one's further. which one revolve the earth with higher speed?

The one that is closer will move at a higher speed. The same happens, for example, with planets revolving around the Sun - the planets closer to the Sun move faster.


Why must the inner planets travel faster than the outer planets?

They are closer to the star they circulate around or the other planets and so their centre of gravity is closer, therefore the force is stronger and thus causing their rotation to increase in speed.


How does a planets distance from the sun affect the planets orbit speed?

A planet's distance from the sun affects its orbit speed through Kepler's Third Law of Planetary Motion. The closer a planet is to the sun, the faster it travels in its orbit. This is because the sun's gravitational pull is stronger closer to the sun, causing the planet to move faster to maintain its orbital balance.


What happens to the speed of planets orbiting the sun as you get closer to the sun?

As you get closer to the sun, the speed of planets increases due to the stronger gravitational pull from the sun. This increase in speed is necessary to balance the pull of gravity with the planet's tendency to move in a straight line. This phenomenon is described by Kepler's second law of planetary motion.


Why do the planets closer to the sun orbit the sun faster than planets farther away do?

You may recall that the force of gravity is inversely proportional to the distance between the centers of mass of the objects in question. Hence, objects closer to the sun are much more strongly attracted by the sun. They must balance that force by a stronger centrifugal force which requires a faster orbit. If they did not do so, they would just fall into the sun and be gone. Only the fast survive.


Do planets orbit around the sun at the same speed?

No. The farther away you get from the sun, the slower the planets orbit. (and the sun looks smaller!). By the way, even if the planets were all moving at the same speed, they still wouldn't be lined up, because the distances traveled by planets with each revolution around the sun would be different. Therefore this question is reasonable. (this is another person) they do orbit more slowly, Newton's law of universal gravitation states that the larger the mass of the two objects and the closer together the objects are, the greater the force of gravity between the two objects.


Why do some planets take longer to orbit the sun than others?

Planets further out from the sun have a larger orbit to travel around, which takes more time. This is because their orbital path is longer, meaning they move at a slower average speed compared to planets closer to the sun. This results in different orbital periods for different planets.


What is the force that keeps the planets from moving closer to the sun?

No force is needed, which is lucky because there isn't any. A planet's speed in the direction of its orbit prevents it from falling in closer.


How do planets move if they are closer to the sun?

Planets closer to the sun move faster in their orbits due to the stronger gravitational pull from the sun. This increased speed helps to counteract the stronger pull of gravity, allowing them to maintain a stable orbit.


How does the Earth probably compare in orbital speed to the other planets?

The Earth's orbital speed is relatively high compared to the other planets in our solar system due to its closer proximity to the Sun. Mercury has the fastest orbital speed, followed by Venus and Earth. The gas and ice giants like Jupiter, Saturn, Uranus, and Neptune have much slower orbital speeds due to their larger orbits and distances from the Sun.