8. Centripetal Forces & Gravitation

Newton's Law of Gravity

Multiple Choice
A car of mass $m$ travels over the top of a hill with radius of curvature $r$ . What is the maximum speed $v$ the car can have at the top of the hill without losing contact with the road (i.e., without flying off)?
Multiple Choice
In Newton's law of universal gravitation, how does the magnitude of the gravitational force between two point masses change when the distance between them is doubled (masses unchanged)?
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Multiple Choice
The acceleration due to gravity on the Moon's surface is about one-sixth that on Earth. Given that the radius of the Moon is roughly one-quarter that of the Earth, what is the mass of the Moon in terms of the mass of the Earth?
Multiple Choice
In Newton's law of universal gravitation, how does the gravitational force depend on the sizes (masses) of two objects separated by a distance $r$ ?
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Multiple Choice
According to Newton's Law of Gravity, into which of the following stable force fields can a proton be placed at rest without experiencing a force?
Multiple Choice
Why is it important to use a scale model when describing the solar system?
Multiple Choice
According to Newton's Law of Gravity, which of the following changes would increase the gravitational force between two objects? $F = \frac{G m_{1} m_{2}}{r^{2}}$
Multiple Choice
In Newton's law of universal gravitation, if the distance between two point masses is doubled while the masses remain the same, how does the gravitational force change?
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Multiple Choice
According to Newton's Law of Gravity, how does increasing the mass of one of two objects affect the gravitational force between them? $F = \frac{G}{r} m_{1} m_{2}$
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Multiple Choice
According to Newton's Law of Gravity, how does the gravitational force between two objects change as the distance between them increases?
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Multiple Choice
According to Newton's Law of Gravity, how does the gravitational force between two objects change as the distance between them increases?
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Multiple Choice
According to Newton's Law of Gravity, the magnitude of the gravitational force between two objects depends on which of the following factors? $F = \frac{G m_{1} m_{2}}{r^{2}}$
Multiple Choice
According to Newton's law of universal gravitation, which of the following statements is true?
Multiple Choice
According to Newton's Law of Gravity, what happens to the gravitational force between two masses as the distance between them decreases?
Multiple Choice
How many kilometers above the Earth's surface must you travel for your weight to decrease to 49% of its value at the surface, according to Newton's Law of Gravity?