Mars orbits the Sun about 1.5 times further away than the Earth does

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Mars orbits the Sun about 1.5 times further away than the Earth does. The gravitational field strength due to the Sun at the Earth is about (1)

\frac{1}{1.5}

times that at Mars. (2)

\frac{1}{1.5^2}

times that at Mars. (3) 1.5 times that at Mars. (4)

1.5^2

times that at Mars.