Question

section c: fill in the missing word
strength masses newtons(n) kilograms(kg) mass distance

1. the gravitational force between two objects depends on their

and the between them.

1. mass is measured in , while weight is measured in

.

1. an objects weight can change depending on the of the

gravitational field it is in, but its remains constant.

Explanation:

1. According to Newton's law of universal gravitation, the gravitational force \(F = G\frac{m_1m_2}{r^2}\), where \(m_1\) and \(m_2\) are the masses of the two objects and \(r\) is the distance between them. So the gravitational force depends on their masses and the distance between them.
2. Mass is a fundamental property of an object and is measured in kilograms (kg). Weight is the force due to gravity acting on an object, and force is measured in newtons (N).
3. Weight \(W=mg\), where \(g\) is the acceleration due to gravity (related to the strength of the gravitational field). As \(g\) can change (e.g., on the Moon \(g\) is different from that on Earth), weight can change. But mass is an intrinsic property of an object and remains constant.

Answer:

1. masses; distance
2. kilograms (kg); newtons (N)
3. strength; mass