Physics (Essay) Paper 2 WASSCE (PC), 2022

Question 4

 

(a)        Define the term parking orbit
(b)        State one use of a communication satellite.

Observation

 

The expected response;
(a)  Definition of Parking Orbit
The path around a planet/earth in which a satellite’s period of revolution becomes equal to the period of rotation of the planet/earth.

                                                            OR

A path along which a satellite moves round the earth such that its period of revolution equals 24 hours/ 1 day.                                                                                                                                                                                                         
(b)   Uses of Communication Satellite
-   Transmission of information/signals/data (from one part of the globe to another).
-   Weather tracking/forecasting