Newton’s Universal Law of Gravitation

Newton’s law of universal gravitation says that the attractive force experienced by two objects is

• Directly proportional to the product of the masses of the objects

• Directly proportional to the distance between the centers of the two objects

• Inversely proportional to the product of the masses of the objects

• Only existent between heavy objects

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Newton’s law of universal gravitation says that the attractive force experienced by two objects is

• Inversely proportional to the product of the masses of the objects

• Inversely proportional to the distance between the centers of the two objects

• Inversely proportional to the product of the masses of the objects

• Objects always experience a gravitational acceleration of 9.8m/s²

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Given the image, “m₁” refers to

• The mass of the first object

• The mass of the second object

• The distance between the objects

• The acceleration of the first object

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Given the image, “F” is inversely proportional to which variables? (Select multiple answers)

• r

• r²

• m₁m₂

• G

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Another name for the gravitational force that we experience due to the earth is

• Weight

• Mass

• Speed

• Gravitational acceleration

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1. What is the name of gravitational force acts between any two bodies in the universe?

• Acceleration Force

• Universal Force

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What is the relationship between gravitational force and the product of the masses of the two bodies?

• Inversely proportional

• Directly proportional

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What is the relationship between gravitational force and the square of the distance between the centres of two bodies?

• Directly proportional

• Inversely proportional

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_____________________ states that the gravitational force between two bodies is directly proportional to the product of the masses of both bodies and inversely proportional to the square of the distance between the centres of the two bodies.

• Newton's First Law

• Newton's Third Law

• Newton’s Universal Law of Gravitation

• Newton's Parallel Universe Law

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Study Example 1 (page 80) from your text book and answer this question.

Calculate the gravitational force between a durian and the Earth. Mass of durian = 5.0 kg Mass of the Earth = 5.97 × 10²⁴ kg Distance between the centre of the durian and the centre of the Earth = 9.57 × 10⁶ m.

• 31.32 N

• 18.72 N

• 32.34 N

• 21.74 N

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