Question

The ratio: $\frac{g_{Earth}}{g_{Moon}}$ is equal to:

• A. $6$
• B. $\frac{1}{10}$
• C. $\frac{1}{2}$
• D. none of the above

Answer 1

The correct option is A $6$

Answer is A.
Because the moon has less mass than Earth, the force due to gravity at the lunar surface is only about 1/6 of that on Earth.
$g_{Earth}=9.81m/s^2$

$g_{Moon}=1.625m/s^2$.
So, the ratio:

$\frac{g_{Earth}}{g_{Moon}}=\frac{9.81}{1.625}=6$
Hence earth has 6 time of moon's gravity.