8. Centripetal Forces & Gravitation

Which force is responsible for keeping $\mathrm{Earth}$ in orbit around the $\mathrm{Sun}$?

According to Newton's Law of Gravity, which of the following correctly expresses the gravitational force $F$ between two masses $m_1$ and $m_2$ separated by a distance $r$?

When an object moves in a gravitational field, which of the following statements about the gravitational force acting on it is correct?

According to Newton's Law of Gravity, how does increasing the distance between two masses affect the gravitational force between them?

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

According to Newton's Law of Gravity, increasing which of the following conditions will result in a greater gravitational force between two objects? $F=\frac{G{m}_1{m}_2}{r^2}$

According to Newton's Law of Gravity, which of the following is a plausible explanation for the formation of hot Jupiters? $F=\frac{GmM}{r^2}$

According to Newton's Law of Gravity, what happens to the gravitational force between a planet and another object if you increase the mass of the planet while keeping all other factors constant? $F=\frac{\mathrm{G\; m\_1\; m\_2}}{r^2}$

Two identical masses $m$ are placed a distance $d$ apart. What is the magnitude of the gravitational force on a proton placed exactly at the midpoint between them?

If Earth's gravitational pull suddenly became $3$ times stronger, what would happen to your weight?

According to Newton's Law of Gravity, which of the following correctly expresses the gravitational force $F$ between two masses $m_1$ and $m_2$ separated by a distance $r$?

According to Newton's Law of Gravity, the strength of the gravitational force between two objects depends on which of the following? $F=G\frac{m_1{m}_2}{r^2}$