Question 38
Question 38 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
6. Space physics
6.1.1. The Earth

Define average orbital speed from the equation v = 2πr/T where r is the average radius of the orbit and T is the orbital period; recall and use this equation

6. Space physics
6.1.2. The Solar System

Know that planets, minor planets and comets have elliptical orbits, and recall that the Sun is not at the centre of the elliptical orbit, except when the orbit is approximately circular