Planetary Science

# Does a planet have the greatest inertia?

012 ###### 2012-12-05 00:51:33

It depends on what type of planet it is.... which one is it?

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## Related Questions   Inertia is trying to pull the planet away from the sun and gravity is pulling the planet toward the sun so the both inertia and gravity steer the planet around the sun The one with the greatest mass has the greatest inertia. So, it will be the bowling ball.   The "inertia" of the moving planet combines with the force of gravity between the planet and the Sun, causing the planet to move in an orbit around the Sun. "Inertia" is basically the tendency for a moving body to move in a straight line unless acted upon by a force (such as gravity). Gravity keeps a planet in orbit. Inertia tries to make the planet move in a straight line. The balance between the two makes the planet orbit a sun. Inertia is defined by Newton's first law, "Objects in motion stay in motion, objects at rest stay at rest" If a planet had no inertia it could come to a stop or accelerate to high speeds without any force applied to it. It also would not find an orbit. Inertia is a fundamental property of the law of conservation of energy. Without it, the planet, and the universe would be quite, quite different.   Gravity acts between the Sun and a planet, pulling the planet towards the Sun. The inertia of the planet would otherwise keep the planet moving in a straight line (Newton's first law of motion), at a tangent to its orbital path. The two factors combine to keep the planet in its curved (elliptical) orbital path. Gravity and inertia both contribute to their orbits. Inertia tends to move a planet away from the Sun, while the Sun's gravity tries to pull the planet closer. Without one of them, a planet would either float away from the Sun (inertia only) or burn up from the Sun (gravity only).  Inertia is what keeps a moving object moving. That is, if an object is moving, it has the tendency to continue moving. What keeps the planets in orbit, in a way, is gravity - with only inertia, the planet would move in a straight line, but gravity provides the force to make the planet change direction. The size of the planet and the inertia it begins with. Inertia is the resistance to changing velocity (either speed or direction). All objects in the universe are already moving, so the planet, while moving, was caught in gravity of another object (like the Sun) and trapped in revolution. The amount of inertia, determined by mass, normally, influences how fast an object revolves. The force of gravity pulls a planet directly towards the Sun. At the same time the planet is moving fast in a direction about 90 degrees to the force, and the planet's inertia tends to make it travel in a straight line with a constant velocity. The resulting effect of gravity and inertia combined is that the planet follows a curved path that takes it round the Sun in its orbit. Gravity counteracts this inertia, usually the gravity of a body much larger than itself. Mercury has the greatest temperature extremes of and planet. The one with the greatest mass. In general, inertia is related to mass. Inertia = momentum = mass X speed (technically, velocity). The one with the greater speed (if equal masses). the force is called GRAVITY and INERTIA working together There would be no life on the planet. By:karean colson-marshall (karin)  They are not regenerated. The rings are generated by the gravity of the planet and the inertia of the object. Inertia is based on mass. The most massive of the four items is the bowling ball.

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