8. Centripetal Forces & Gravitation

According to Newton's Law of Gravity, how would the speed of Earth's orbit around the Sun change if Earth's mass increased by $4$ times, assuming the orbital radius remains the same?

According to Newton's Law of Gravity, which of the following options correctly determines the gravitational pull between two masses?

Skydiving might feel like flying, but pretty soon $F=mg$ will pull you down to the ground.

According to Newton's Law of Gravity, which of the following can cause a moving object to change its direction?

According to $Newton’s$ Law of Gravity and the effects of solar radiation, which direction do a comet's dust and plasma tails point as the comet approaches the $Sun$?

According to Newton's Law of Gravity, how does the gravitational force between two objects depend on the distance between them?

If the Moon had an irregular shape rather than being nearly spherical, which theory would be most supported regarding the cause of its motion around $Earth$?

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

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

Which of the following statements best explains why the Earth has a gravitational field?

According to Newton's Law of Gravity, which of the following objects would produce the strongest gravitational field at its surface?

According to Newton's Law of Gravity, what was the primary role of gravity in the formation of the planets in our solar system?

According to Newton's Law of Gravity, why do planets move in nearly circular orbits around the Sun?

How does gravitational lensing provide information about the mass of a galaxy cluster according to Newton's Law of Gravity $F=\frac{G{m}_1{m}_2}{r^2}$?

According to Newton's Law of Gravity, how does the gravitational force exerted by an object change if its mass increases while all other factors remain constant? $F=\frac{\mathrm{G\; m\_1\; m\_2}}{r^2}$