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Question 1
Two point masses m1 and m2 are initially separated by a distance r, exerting a gravitational force F on each other. If the separation distance is doubled to 2r while keeping the masses constant, what is the new gravitational force between them?
Correct Answer:
0.25 F
Question 2
According to Kepler's third law of planetary motion, how does the orbital period T of a planet orbiting the Sun relate to its semi-major axis r?
Correct Answer:
T^2 is directly proportional to r^3.
Question 3
A planet has twice the mass of Earth (M_p = 2 M_E) and twice the radius of Earth (R_p = 2 R_E). If the surface gravitational acceleration on Earth is g_E, what is the surface gravitational acceleration g_p on this planet?
Correct Answer:
0.5 g_E
Question 4
Why is the gravitational potential energy U = -G M m / r defined with a negative sign when using the standard reference point at infinity?
Correct Answer:
Because work must be done against the attractive gravitational force to move a mass to infinity, where U = 0.
Question 5
Kepler's second law (law of equal areas) is a direct consequence of which fundamental conservation law?
Correct Answer:
Conservation of angular momentum
Question 1
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About this Exam

Prepare with the Balearic PAU Physics Practice Questions - Balearic Islands PAU Physics Examination - UIB (Física 2o Bachillerato UIB 2026) Exam practice quiz. This question bank includes 100 questions covering field, magnetic, earth, radius, and point. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Balearic PAU Physics Practice Questions - Balearic Islands PAU Physics Examination - UIB (Física 2o Bachillerato UIB 2026) Exam

This practice set contains 100 questions from the matching question bank and focuses on field, magnetic, earth, radius, and point. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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