Question

the distance between two planets is increased. what will happen to the gravitational attraction between them?
it will increase
it will decrease
it will stay the same
question 3
1 pts
true or false: every object around you exerts an invisible gravitational field around itself.
true
false

Explanation:

Step1: Recall gravitational force law

Newton's law of universal gravitation: $F = G\frac{m_1m_2}{r^2}$, where $F$ is gravitational attraction, $G$ is the gravitational constant, $m_1,m_2$ are masses of the planets, and $r$ is the distance between them.

Step2: Analyze distance effect

As $r$ (distance) increases, $r^2$ increases, so $F$ (attraction) decreases, since $F$ is inversely proportional to $r^2$.

Step3: Recall gravitational field rule

All objects with mass exert a gravitational field, regardless of size.

Answer:

1. It will decrease
2. True