Gravitation MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Enhance your knowledge of Gravitation with advanced online physics exams designed to optimize your preparation. These resources provide a comprehensive review of basic physics concepts related to gravitational forces, potential energy, and orbital mechanics. Utilize practice tests and MCQ answers to deepen your understanding and excel in your studies. Special focus on MDCAT MCQs can give you a significant advantage in mastering gravitational principles.
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The escape velocity of an object from the surface of the Earth is approximately:
A. 11.2 km/s
B. 7.9 km/s
C. 5.0 km/s
D. 12.3 km/s
Answer: 11.2 km/s
The escape velocity from a celestial body is independent of:
A. The body's mass
B. The body's radius
C. The body's density
D. The body's surface temperature
Answer: The body's density
The gravitational field strength on the Moon is:
A. 1.6 m/s²
B. 9.81 m/s²
C. 3.7 m/s²
D. 12.0 m/s²
Answer: 1.6 m/s²
The gravitational field strength at a distance r from the center of a planet of mass M is:
A. GM / r²
B. GM / r
C. GM / r³
D. GM / r
Answer: GM / r²
The value of gravitational acceleration g on the surface of the Earth is approximately:
A. 9.81 m/s²
B. 8.9 m/s²
C. 10 m/s²
D. 11.2 m/s²
Answer: 9.81 m/s²
The gravitational force between two objects depends on which of the following?
A. Their masses and the distance between them
B. Their densities and the distance between them
C. Their temperatures and the distance between them
D. Their velocities and the distance between them
Answer: Their masses and the distance between them
The gravitational potential energy of an object on the Earth’s surface is given by:
A. mgh
B. 1/2 mv²
C. Gm₁m₂ / r
D. Fh
Answer: mgh
The gravitational constant G has the units of:
A. N·m²/kg²
B. N·m/kg
C. m²/kg
D. N·kg²/m²
Answer: N·m²/kg²
The value of the universal gravitational constant G is approximately:
A. 6.674 × 10⁻¹¹ N·m²/kg²
B. 6.674 × 10⁻¹² N·m²/kg²
C. 9.81 N·m²/kg²
D. 1.618 × 10⁻¹¹ N·m²/kg²
Answer: 6.674 × 10⁻¹¹ N·m²/kg²