Gravity & Gravitation Multiple Choice Questions & Quizzes

Every pair of masses attracts: \( F = Gm_1m_2/r^2 \). Near the ground that pull is just weight. Far away, the same law sets the field \( g = GM/r^2 \).

Respect the inverse square. Double the distance and the force drops to a quarter. Satellite and orbit problems get their own page.

Practice 149 questions on Gravity & Gravitation below with free multiple choice (MCQ) and quizzes, graded instantly.

Where This Topic Shows Up

AP Physics 1 in Units 2 and 6
AP Physics C: Mechanics
AP Physics C: E&M

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Practice Questions

BeginnerAn object weighs \( 300 \, \text{N} \) on Earth and \( 50 \, \text{N} \) on the Moon. Does the object have less inertia on the Moon?
BeginnerWhat is the mass of a dog that weighs \(58 \, \text{N}\) on Earth?
BeginnerWhat is the weight of a person who has a mass of \(75 \, \text{kg}\)?
BeginnerWhat would your bathroom scale read if you weighed yourself on an inclined plane? Assume the mechanism functions properly, even at an angle.
BeginnerThe Moon does not crash into the Earth because:
BeginnerWhich pulls harder gravitationally, the Earth on the Moon, or the Moon on the Earth? Which accelerates more?
BeginnerIf I weigh \( 741 \) \( \text{N} \) on Earth at a place where \( g = 9.80 \) \( \text{m/s}^2 \) and \( 5320 \) \( \text{N} \) on the surface of anothe…
BeginnerAre astronauts really “weightless” while in orbit?
IntermediateWhich of the following statements about the acceleration due to gravity is TRUE?
IntermediateImagine a hypothetical planet that has two moons. Moon \(\#1\) is in a circular orbit of radius \(R\) and has a mass \(M\).
IntermediateA \(1.5 \, \text{kg}\) object is located at a distance of \(1.7 \times 10^{6} \, \text{m}\) from the center of a larger object whose mass is…
IntermediateThe Earth's radius is \(6.37 \times 10^{6} \, \text{m}\). What is the radius of a planet that has the same mass as Earth but on which the free-fall ac…
IntermediateA satellite circling Earth completes each orbit in \(132 \, \text{minutes}\).
IntermediateA satellite in circular orbit around the Earth moves at constant speed. This orbit is maintained by the force of gravity between the Earth and the sat…
IntermediateWhich of the following best explains why astronauts experience weightlessness while orbiting the earth?
IntermediateThe exoplanet HD 69830b has a mass 10 times that of the Earth and a radius 5 times that of the Earth. The value of g on HD 69830b is most nearly
AdvancedThe gravitational force that the Moon exerts on Earth is often cited as the source of the tides we witness. However, the gravitational force the Sun e…
AdvancedThe International Space Station has a mass of \(4.2 \times 10^{5} \, \text{kg}\) and orbits Earth at a distance of \(4.0 \times 10^{2} \, \text{km}\)…
AdvancedTwo identical satellites are placed in orbit of two different planets. Satellite \(A\) orbits Mars, and Satellite \(B\) orbits Jupiter. The orbital sp…
AdvancedFind the escape speed from a planet of mass \(6.89 \times 10^{25} \, \text{kg}\) and radius \(6.2 \times 10^{6} \, \text{m}\).
AdvancedFind the net gravitational force on a \(2.0 \, \text{kg}\) sphere midway between a \(4.0 \, \text{kg}\) sphere and a \(7.0 \, \text{kg}\) sphere that…
AdvancedTwo satellites are in circular orbits around Earth. Satellite A has speed \(v_A\). Satellite B has an orbital radius nine times that of satellite A. W…
AdvancedA spacecraft somewhere in between the Earth and the Moon experiences zero net force acting on it. This is because the Earth and the Moon pull the spac…
AdvancedA rocket of mass \( m \) is launched with kinetic energy \( K_0 \), from the surface of the Earth. How much less kinetic energy does the rocket have a…

Quizzes

Unit 2.5 Circular Motion, Gravitation, and Orbital Mechanics Mastery 10 questions Take quiz →
Orbital Mechanics and Gravitational Dynamics Masterclass 15 questions Take quiz →

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