8. Centripetal Forces & Gravitation

Which of the following statements about surface gravity on a planet are correct? Choose the single best answer. $g=\frac{GM}{R^2}$

Which of the following best explains why the Earth experiences seasons?

According to Newton's Law of Gravity ($F=\frac{\mathrm{Gm\_1m\_2}}{r^2}$), how does a vehicle going uphill work against gravitational force?

According to Newton's Law of Gravity, which of the following best describes the gravitational force between Earth and the Sun ($F=\frac{\mathrm{G\; m\_1\; m\_2}}{r^2}$)?

Which of these factors does not cause seasonal change according to Newton's Law of Gravity ($F=\frac{\mathrm{Gm\_1m\_2}}{r^2}$)?

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

Which of the following best describes Newton's Law of Gravity?

According to Newton's Law of Gravity, which statement best describes the motion of two massive plates placed near each other in space?

According to Newton's Law of Gravity, what force is responsible for causing objects in space, such as planets and satellites, to travel in elliptical orbits around larger bodies?

According to Newton's Law of Gravity ($F_g=\frac{\mathrm{G\; m\_1\; m\_2}}{r^2}$) and the Coriolis effect ($F=-2m𝛷\times v$), in which direction are moving objects deflected in the Northern Hemisphere?

Why don't solar eclipses occur every time the Moon is positioned between the Sun and the Earth?

According to Newton's Law of Gravity, which two factors directly affect the magnitude of the gravitational force between two objects?

What is the primary cause of the differing seasons on $Earth$?

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

According to Newton's Law of Gravity, what is the ratio of the Sun's gravitational force on you to the Earth's gravitational force on you? Assume your mass is $m$, the mass of the Sun is $M_{\mathrm{sun}}$, the mass of the Earth is $M_{\mathrm{earth}}$, the distance from you to the Sun is $r_{\mathrm{sun}}$, and the distance from you to the Earth's center is $r_{\mathrm{earth}}$.