Question

1. the gravitational force between two objects depends on the distance between them and their

weight

mass

volume

1. an astronaut on the moon would have the same ______ as on earth.

Explanation:

For question 17: Newton's law of universal gravitation states that the gravitational force \(F = G\frac{m_1m_2}{r^2}\), where \(m_1\) and \(m_2\) are the masses of the two objects, \(r\) is the distance between them, and \(G\) is the gravitational constant. So the gravitational force depends on mass and distance.
For question 18: Mass is a measure of the amount of matter in an object. Weight \(W=mg\), where \(g\) (acceleration due to gravity) is different on the Moon (\(g_{moon}\approx1.62m/s^{2}\)) and on Earth (\(g_{earth}\approx9.8m/s^{2}\)). Volume is related to the space an object occupies. Since mass is an intrinsic property of an object (not dependent on the gravitational field), an astronaut has the same mass on the Moon as on Earth.

Answer:

1. mass
2. mass