Satellite Motions Terms
Circular Orbits
Escape Speed
Elliptical Orbits
Miscellaneous
100
The time for a complete orbit around the Earth.
What is period?
100
For higher altitudes, this speed is less and the period is longer.
What is orbital speed?
100
To achieve orbit, the payload must be launched at this direction at 8 km/s once above air resistance.
What is horizontally?
100
Using these, you can construct a simple ellipse.
What is foci?
100
The universal gravitational constant.
What is G=6.67x10^-11(N-m^2/kg^2)?
200
An oval-shaped curve that is the path of the point that moves such that the sum of its distances from 2 fixed points is constant.
What is ellipse?
200
A satellite is moving in this direction to the Earths surface at a constant speed.
What is parallel?
200
The alternative equation that was set by the universal law of gravitation and Newtons Second Law of motion.
What is g=GM/d^2?
200
A projectile just above the atmosphere at a horizontal speed somewhat more than 8 km/s will overshoot a circular path and trace this path.
What is an ellipse?
200
This probe was launched from Earth in 1972 with a speed of only 15 km/s.
What is Pioneer 10?
300
On an elliptical orbit, where the PE is greatest.
What is apogee?
300
A satellite in a circular orbit close to the Earth moves tangentially at this speed.
What is 8 km/s?
300
As s payload continues outward form Earth, this energy increases and this other energy decreases.
What is PE and KE?
300
When both foci are together, the ellipse will make this shape.
What is a circle?
300
A projectile that falls around the Earth rather than into it.
What is earth satellite?
400
On an elliptical orbit, where the PE is the least.
What is perigee?
400
A satellite is moving in this direction to the force of gravity.
What is perpendicular?
400
These signals that are broadcast into space carry television programs or telephone conversations travel in straight lines.
What is electromagnetic?
400
This is constant in a circular orbit and varies in a elliptical orbit.
What is satellite speed?
400
All bodies in space are doing this around other bodies.
What is falling?
500
2 fixed points.
What is foci?
500
Newton did not consider this idea.
What is multistage rockets?
500
These can put a rocket on a new path.
What is corrective thrusters?
500
When the satellite is at this point in the orbit, it starts to come back towards the Earth.
What is maximum separation or center?
500
The satellite must stay about this distance or more above the Earths surface to keep from burning up.
What is 150 km?
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