Space travel, satellite orbits and sustainability – basic principles
How it works
Space travel uses rockets to bring payloads into space. Satellites move on stable orbits around celestial bodies, usually in the form of circles or ellipses. The orbit depends on speed and distance from the center. Sustainability in space travel includes avoiding waste, conserving resources, and preventing dangers for Earth and space. Satellite orbits are determined by gravity and speed, while sustainable space travel also takes into account dealing with space debris and resources.
A satellite remains in a stable orbit when its speed and distance are chosen so that gravitational force acts as the centripetal force. Sustainable space travel means conserving resources and avoiding space debris.
An example
A satellite is to orbit the Earth at an altitude of 400 km. Which force keeps it on its orbit?
Try it yourself now
50 Exercises · three difficulty levels · selection and number input
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: KMK Educational Standards Mathematics ESA/MSA. The topic assignment may vary by federal state.