8. Centripetal Forces & Gravitation

According to Newton's Law of Gravity, which of the following factors affect the magnitude of the gravitational force between two objects? $F=\frac{G{m}_1{m}_2}{r^2}$

According to Newton's Law of Gravity, if the gravitational force between two masses is initially $F$ when they are a certain distance apart, what will be the new force if the masses are moved so they are only one-eighth as far apart?

According to Newton's Law of Gravity, which variables determine the gravitational force between two objects ($F=\frac{G{m}_1{m}_2}{r^2}$)?

According to Newton's Law of Gravity, what is the approximate free-fall acceleration toward the Sun at the distance of Earth's orbit ($1 \mathrm{AU}$)?

Which force is primarily responsible for determining the motions of planets and other objects in the solar system?

According to Newton's Law of Gravity, what happens to the gravitational force between two masses if one of the masses is decreased while the other and the distance between them remain constant?

According to Newton's Law of Gravity $F=\frac{\mathrm{G\; m\_1\; m\_2}}{r^2}$, what would most likely happen to galaxies if gravity did not exist?

According to our understanding of Newton's Law of Gravity $F=\frac{\mathrm{Gm\_1m\_2}}{r^2}$ and the motion of celestial bodies, do we always see the same side of the Moon from Earth?

According to Newton's Law of Gravity, which object exerts a downward force on a book resting on a table?

According to the theory of plate tectonics, strike-slip plates move in which direction relative to each other?

When the $E,M,S$ (Earth, Moon, and Sun) are aligned in a straight line, what type of tide is created?

According to Newton's Law of Gravity, what is the magnitude of the gravitational force between two bodies each of mass $1\mathrm{kg}$ separated by a distance of $1m$?

Which of the following explains why seasonal conditions vary in different parts of the world?