Physics 9702 · AS & A Level · Kinematics of uniform circular motion
Kinematics of uniform circular motion — practice question
Polar orbiting satellites move in paths that pass over the Earth’s poles. Geostationary satellites are placed in equatorial orbits. Both are used within communication channels.
(a)[2]
State one advantage and one disadvantage of using a polar orbiting satellite instead of a geostationary satellite.
(b(i))[2]
A geostationary satellite is said to use the $6/4\,\text{GHz}$ band. Explain what is meant by the $6/4\,\text{GHz}$ band.
(b(ii))[2]
Explain why two separate frequencies are needed.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “An advantage could be a smaller delay / wider coverage” …