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Unbound in this context means, that the distance from the particle orbiting (e.g. earth) to its focal point (e.g. sun) is not bound and can become infinite.
In a bound orbit, this is not possible. The orbiting particle will always be closer to its focal point than a maximal radius. It can not escape to infinity.
This also works for an infalling particle, where the radius is not bounded from below and can become 0, i.e. it collides with the focus. In this case, there is no minimal radius. (technically, there is one, but it is 0).
To summarise: unbound means, either the orbiting particle escapes to infinity or collides with it's focal point at some time.
What else can I help you with?
What is the difference between a bound orbit and an unbound orbit around the Sun?
A bound orbit is a closed path around the Sun where an object is gravitationally bound to the Sun, like the planets in our solar system. An unbound orbit is when an object travels past the Sun once and does not return, like a comet that enters the solar system from afar and leaves after its close approach to the Sun.
What keeps objects in orbit in our solar system?
Gravity combined with the object's "sideways" (tangential to its orbit) motion. The Sun "wants" to pull the object towards it and the object "wants" to fly of into space. When these two things are balanced the object is in a stable orbit.
What is the name for a non circular orbit?
An elliptical orbit is a non-circular orbit where the orbiting object follows an elongated path around another object.
What is the period when an object travels around another object?
orbit
An object is kept in orbit by?
Gravity.
What is the difference between a bound orbit and an unbound orbit around the Sun?
A bound orbit is a closed path around the Sun where an object is gravitationally bound to the Sun, like the planets in our solar system. An unbound orbit is when an object travels past the Sun once and does not return, like a comet that enters the solar system from afar and leaves after its close approach to the Sun.
The path an object takes around another object is called an?
This is an orbit.
A object orbit another another is a what?
a object orbit another object is called a what?
What is the path of one object circling another?
orbit orbit orbit
Why does an object in orbit needs a centripetal force act?
An object in orbit needs a centripetal force to keep it moving in a circular path. Gravity provides this centripetal force, pulling the object towards the center of the orbit. Without this force, the object would continue in a straight line tangent to the orbit.
What keeps objects in orbit in our solar system?
Gravity combined with the object's "sideways" (tangential to its orbit) motion. The Sun "wants" to pull the object towards it and the object "wants" to fly of into space. When these two things are balanced the object is in a stable orbit.
What is the path of an object as it revolves around another object in space?
If the revolving continues for more than a few revolutions, then its path is an elliptical orbit. In space, orbiting cannot take place in a circular path, and the balance point between flying off into space, crashing into the bigger object, or staying in orbit only occurs in an ellipse. It doesn't have to be much of an ellipse, either.
What is the name for a non circular orbit?
An elliptical orbit is a non-circular orbit where the orbiting object follows an elongated path around another object.
What is an object in orbit around the planets?
A planet in an orbit greater than any of the others.An object in orbit around a single planet is a moon or satellite of that planet.
What is path an object follows when orbiting another object?
Orbit
What is the period when an object travels around another object?
orbit
What is the movement of an object around another object is called?
orbit
