Paper 2 H - SAMPLE SET 1 Q22
22) (a) State two features of a satellite in a polar orbit?
Suggest a use for a satellite in a polar orbit. [3]
(b) An artificial satellite (X) is kept in a stable circular orbit around a planet by a centripetal force caused by gravity.
Suggest a use for a satellite in a polar orbit. [3]
(b) An artificial satellite (X) is kept in a stable circular orbit around a planet by a centripetal force caused by gravity.
(i) Explain how the velocity of a satellite is constantly changing whilst its speed remains the same when it is in orbit. [2]
(ii) The satellite is remotely controlled from Earth.
The scientists want the satellite to move slower.
What effect will this change in speed have on the height of its orbit?
Explain your answer. [2]
(Total for Question 22 = 7 marks)
(ii) The satellite is remotely controlled from Earth.
The scientists want the satellite to move slower.
What effect will this change in speed have on the height of its orbit?
Explain your answer. [2]
(Total for Question 22 = 7 marks)