5. Space Systems
Orbital Mechanics — Quiz
Test your understanding of orbital mechanics with 5 practice questions.
Practice Questions
Question 1
Which conserved vector in the two-body Kepler problem points toward periapsis and has magnitude proportional to orbital eccentricity?
Question 2
Which expression relates the semi-latus rectum $p$ of an orbit to its semi-major axis $a$ and eccentricity $e$?
Question 3
A spacecraft orbits Earth on an ellipse with semi-major axis $a=12000\,\mathrm{km}$ and eccentricity $e=0.3$. What is its semi-latus rectum $p$ in kilometers?
Question 4
Which vector quantity remains constant in direction and magnitude in two-body Keplerian motion and defines the orbital plane?
Question 5
Why does performing an impulsive burn at periapsis in an elliptical orbit yield a larger change in orbital energy compared to the same burn at apogee?