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Question 1
According to Newton's law of universal gravitation, how does the gravitational force between two point masses change if the distance between their centers is tripled?
Correct Answer:
It decreases to 1/9 of its original value.
Question 2
At an altitude above Earth's surface equal to Earth's radius (h = R_E), what is the magnitude of the gravitational acceleration g? (Assume surface acceleration g_0 = 9.80 m/s²).
Correct Answer:
2.45 m/s²
Question 3
A satellite orbits Earth in a circular path at an altitude equal to Earth's radius (h = R_E = 6.37 × 10⁶ m). Given Earth's mass M_E = 5.97 × 10²⁴ kg and G = 6.674 × 10⁻¹¹ N m²/kg², what is the orbital speed of the satellite?
Correct Answer:
5.59 × 10³ m/s
Question 4
Two planets orbit a central star in circular orbits. Planet A has orbital radius R, and Planet B has orbital radius 4R. If Planet A's orbital period is T_A = 2.0 years, what is Planet B's orbital period T_B?
Correct Answer:
16.0 years
Question 5
What is the escape velocity from the surface of a planet that has twice the mass of Earth (M_P = 2 M_E) and half the radius of Earth (R_P = 0.5 R_E)? (Earth's escape velocity v_e,Earth = 11.2 km/s).
Correct Answer:
22.4 km/s
Question 1
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About this Exam

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

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Madrid PAU Physics Practice Questions - Madrid PAU Physics (Física - UCM 2026) Exam

This practice set contains 100 questions from the matching question bank and focuses on field, magnetic, earth, speed, and radius. 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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