Newton's Universal Law of Gravitation

What states that "every object in the universe attracts every other object"?

• Newton's Universal Law of Gravitation

• Newton's First Law of Motion

• Inertia & gravity

• My mother

Force of gravity is inversely proportional to

• Mass

• Weight

• Distance

• Time

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• mass and distance

• mass and matter

• distance and weight

• weight and mass

What is the Universal law of gravitation equation?

• G=F ⋅ m_1⋅m₂/r²

• F=G ⋅ r²/m₁⋅m₂

• F=G ⋅ m₁⋅m₂/(r)²

• G=F ⋅ r²/m₁⋅m₂

What is the gravitational force between two identical 50,000 kg asteroids whose centers of mass are separated by 1000 m?

(G = 6.67 x 10^-11 N m² kg^-2)

• 2500 N

• 1.67 x 10^-4 N

• 3.3 x 10^-12 N

• 1.67 x 10^-7 N

Two spherical objects have masses of 8000 kg and 1500 kg. Their centers are separated by a distance of 1.5 m. Find the gravitational attraction between them

(G = 6.67 X 10^-11 N m² kg^-2)

• 5.4 X 10^-4 N

• 3.6 X 10^-4 N

• 1.2 X 10⁷ N

• 5.33 N

Complete the following statement: The further away two planets are the _______ the gravitational force between them.

• more

• same

• doesn't matter

• less

Force of gravity is directly proportional to

• mass

• distance

• weight

• time

What is the gravitational acceleration on a surface of a planet of mass 7.45 x 10²⁷ kg and a radius of 5.42 x 10⁸ m?

(G = 6.67 x 10 ^-11 m ² kg ^-2 )

• 1.69 m/s²

• 12.45 m/s²

• 3.76 m/s²

• 9.77 m/s²

Compute gravitational acceleration,g for the surface of Venus. Its radius is 6.0 x10⁶ m and its mass is 4.9 x 10²⁴ kg.

(G = 6.67 x10^-11 N m² kg^-2 )

• 0.38 ms^-2

• 3.8 ms^-2

• 9.1 ms^-2

• 25 ms^-2