Science Bowl Question

W) When two masses are half as far apart, the force exerted on one by the other will be two times as large

X) When one mass is twice as large as the other, the force exerted on the smaller mass is twice as large as the force exerted on the larger mass

Y) The absolute value of the universal gravitational constant is not known with high accuracy relative to other natural constants

Z) The universal gravitational constant of the Earth is larger than the universal gravitational constant of the Moon