Week 2 Lecture 7
Solutions at the bottom.

1)  In-video quiz at timepoint 01:23.

If the mass of the Earth suddenly doubled, what would happen to the Earth's orbit? Choose the answer that best fits.

a) The orbit would become more elliptical (increased eccentricity) and the semimajor axis would increase.
b) The orbit would become more elliptical (increased eccentricity) and the semimajor axis would decrease.
c) The orbit would remain roughly circular but the semimajor axis would decrease.
d) There would be no change to the orbit.

Solutions:

1) Correct answer is d) There would be no change to the orbit.