9
AssignmentMultiple Select

Planets

Question 9 • HOPE Scholars- Science Grade 8

The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology, and a Dorgon scientist wants to increase the pull of gravity between the two planets.Which proposals would the scientist make to accomplish this goal? Check all that apply.decreasing the distance between Hox and Bloxincreasing the mass of Hoxincreasing the distance between Hox and Bloxdecreasing the mass of Bloxincreasing the mass of Bloxdecreasing the mass of Hox and Blox

Answer
A
decreasing the distance between Hox and Blox
B
increasing the mass of Hox
C
increasing the distance between Hox and Blox
D
decreasing the mass of Blox
E
increasing the mass of Blox
F
decreasing the mass of Hox and Blox

Explanation

The gravitational force between two planets is proportional to the product of their masses and inversely proportional to the square of the distance between them: F = Gm₁m₂/r². So decreasing the distance increases the pull, and increasing the mass of either Hox or Blox also increases it. Increasing the distance or decreasing either planet’s mass would reduce the gravitational force.

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