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8. Centripetal Forces & Gravitation

Newton's Law of Gravity

8. Centripetal Forces & Gravitation

Newton's Law of Gravity

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Universal Law of Gravitation

Universal Law of Gravitation

Where is Net Force on middle object zero?

Where is Net Force on middle object zero?

Center of Mass Distance

Center of Mass Distance

Find force between spheres with radii

Find force between spheres with radii

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Anderson Video - Gravity at Altitude

Anderson Video - Gravity at Altitude

Anderson Video - Gravity at the Center of the Earth

Anderson Video - Gravity at the Center of the Earth

Anderson Video - Newton's Big G and Earth's Little g

Anderson Video - Newton's Big G and Earth's Little g

Anderson Video - Newton's Universal Gravitation

Anderson Video - Newton's Universal Gravitation

Anderson Video - Weight on Earth vs Moon

Anderson Video - Weight on Earth vs Moon

Anderson Video - Difference Between the Sun and Earth's Gravity

Anderson Video - Difference Between the Sun and Earth's Gravity

Anderson Video - Dropping a Rock on Mars

Anderson Video - Dropping a Rock on Mars

Newton's Law of Universal Gravitation by Professor Mac

Newton's Law of Universal Gravitation by Professor Mac

AP Physics 1: Universal Gravitation Review

AP Physics 1: Universal Gravitation Review

Flipping Physics

Gravity, Universal Gravitation Constant - Gravitational Force Between Earth, Moon & Sun, Physics

Gravity, Universal Gravitation Constant - Gravitational Force Between Earth, Moon & Sun, Physics

The Organic Chemistry Tutor

Newton’s law of gravitation explained

Newton’s law of gravitation explained

Newton's Law of Universal Gravitation

Newton's Law of Universal Gravitation

Professor Dave Explains

12.2 Angular Momentum and Orbital Motion

12.2 Angular Momentum and Orbital Motion

AP Physics 1: Universal Gravitation Review

AP Physics 1: Universal Gravitation Review

Flipping Physics

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Practice this topic

Multiple Choice

Two spheres of mass 300 kg and 500 kg are placed in a line 20 cm apart. If another sphere of mass 200 kg is placed between them, 8 cm from the 300 kg sphere, what is the net gravitational force on the 200 kg sphere?

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Multiple Choice

A 2,000-kg spacecraft is blasting away from the surface of an unknown planet the same size as the Earth. At 1500km above the surface, an instrument onboard reads the gravitational force to be 18000 N. What is the planet's mass?

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Multiple Choice

Two spheres are separated by 10m. If the lighter 40kg sphere feels a gravitational force of 1.6 × 10^-9 N, what is the mass of the heavier sphere?

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Textbook Question

What is the ratio of the sun's gravitational force on you to the earth's gravitational force on you?

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Textbook Question

The point masses m and 2m lie along the x-axis, with m at the origin and 2m at x = L. A third point mass M is moved along the x-axis. (a) At what point is the net gravitational force on M due to the other two masses equal to zero?

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Textbook Question

Find the magnitude and direction of the net gravitational force on mass A due to masses B and C in Fig. E13.6

. Each mass is 2.00 kg.

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Textbook Question

Two uniform spheres, each with mass M and radius R, touch each other. What is the magnitude of their gravitational force of attraction?

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Textbook Question

A typical adult human has a mass of about 70 kg. (a) What force does a full moon exert on such a human when it is directly overhead with its center 378,000 km away? (b) Compare this force with the force exerted on the human by the earth

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Textbook Question

Two spherical objects have a combined mass of 150 kg. The gravitational attraction between them is 8.00 x 10⁻⁶ N when their centers are 20 cm apart. What is the mass of each?

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Textbook Question

What is the force of attraction between a 50 kg woman and a 70 kg man sitting 1.0 m apart?

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Textbook Question

Two 65 kg astronauts leave earth in a spacecraft, sitting 1.0 m apart. How far are they from the center of the earth when the gravitational force between them is as strong as the gravitational force of the earth on one of the astronauts?

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Textbook Question

The International Space Station orbits 300 km above the surface of the earth. What is the gravitational force on a 1.0 kg sphere inside the International Space Station?

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Textbook Question

Two uniform spheres, each of mass 0.260 kg, are fixed at points A and B (Fig. E13.5). Find the magnitude and direction of the initial acceleration of a uniform sphere with mass 0.010 kg if released from rest at point P and acted on only by forces of gravitational attraction of the spheres at A and B.

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Textbook Question

What is the net gravitational force on the 20.0 kg mass in FIGURE P13.36? Give your answer using unit vectors.

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Showing 14 of 14 practice