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This quiz contains 11 questions from a mix of 1 subtopics.

In a radial gravitational field, how does the gravitational field strength (g) change as the distance (r) from the mass center increases?

g increases as r decreases

g remains constant regardless of r

g increases as r increases

g decreases as r increases, following an inverse square law

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Which of the following is NOT a factor that affects the gravitational field strength?

gravitational constant

mass of the object

distance from the object's center

shape of the object

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What is the relationship between the mass of an object and its gravitational field strength?

exponentially related

no relationship

directly proportional

inversely proportional

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What is the gravitational field strength at the surface of Mars if its mass is 6.41 × 1023 kg and its radius is 3.4 × 106 m?

5.5 N kg-1

9.8 N kg-1

2.2 N kg-1

3.7 N kg-1

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What happens to the gravitational field strength as you move away from the surface of a planet?

it fluctuates

it remains constant

it decreases

it increases

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Which planet has a higher gravitational field strength at its surface?

earth (mass: 5.97 × 1024 kg, radius: 6.37 × 106 m)

both have the same gravitational field strength

mars (mass: 6.41 × 1023 kg, radius: 3.4 × 106 m)

cannot be determined from the given information

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What is the term for the type of gravitational field around spherical objects or point masses?

radial

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What is the gravitational field strength at a distance of 10,000 km from the center of a planet with a mass of 4.8 x 1024 kg?

19.6 N kg-1

4.8 N kg-1

3.2 N kg-1

9.6 N kg-1

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Calculate the mass of a planet if the gravitational field strength 20,000 km from its centre is 2.5 N kg-1.

2.9 x 1024 kg

1.7 x 1025 kg

5.3 x 1024 kg

1.5 x 1025 kg

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If the gravitational constant (G) is 6.67 x 10-11 N m2 kg-2, what is the gravitational field strength at a point 5,000 km from the center of a celestial body with a mass of 7.35 x 1022 kg?

1.18 N kg-1

0.196 N kg-1

2.36 N kg-1

4.72 N kg-1

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What is the gravitational field strength 15,000 km from the centre of an object with a mass of 5.97 x 1024 kg?

3.54 N kg-1

2.65 N kg-1

0.884 N kg-1

1.77 N kg-1

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