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 the strength of the Sun's gravitational field decreases and that the orbital speeds of the planets decrease as the distance from the Sun increases