8. Centripetal Forces & Gravitation

Newton's Law of Gravity

Multiple Choice
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 $r$ ?
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Multiple Choice
According to Newton's Law of Gravity, what is the primary effect as gravity pulls water down a slope? $F = \frac{G m_1 m_2}{r^{2}}$
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Multiple Choice
According to Newton's law of universal gravitation, the magnitude of the gravitational force between two point masses depends on which two factors?
Multiple Choice
According to Newton's Law of Gravity, what is the only force that acts on an object in free fall near the Earth's surface (neglecting air resistance)?
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Multiple Choice
According to Newton's Law of Gravity, which change will always result in an increase in the gravitational force between two objects?
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Multiple Choice
According to Newton's Law of Gravity, how does increasing the distance between two objects affect the gravitational force between them?
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Multiple Choice
Why do the planets move in fixed orbits around the Sun according to $N e w t o n ’ s$ Law of Gravity?
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Multiple Choice
In the context of Newton's law of gravity, which quantity is defined as a measure of the force of gravity on an object near a planet's surface?
Multiple Choice
Which of the following are possible orbital paths for an object moving under $N e w t o n ’ s L a w o f G r a v i t y$ ?
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Multiple Choice
According to Newton's law of universal gravitation, the magnitude of the gravitational force between two point masses is $F = G \frac{m_{1} m_{2}}{r^{2}}$ . Which variables determine the value of $F$ (assuming $G$ is constant)?
Multiple Choice
Which of the following is a major difference between $e l e c t r i c a l$ and $g r a v i t a t i o n a l$ forces?
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Multiple Choice
A woman has a weight of $500 N$ while standing on Earth's surface. What is the magnitude of the gravitational force acting on her?
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Multiple Choice
Which statement best explains why objects are pulled toward Earth's center according to $N e w t o n ’ s L a w o f G r a v i t y$ ?
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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 do the masses of two objects and the distance between them affect the gravitational force they exert on each other?
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