Gravitation MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
Master Gravitation with Expert Online Physics Exams
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 from a planet’s surface depends on:
A. The planet's mass and radius
B. The planet's density
C. The planet's temperature
D. The planet's gravitational constant
Answer: The planet's mass and radius
The value of gravitational constant G is:
A. 6.67 × 10⁻¹¹ N·m²/kg²
B. 9.81 × 10⁻¹¹ N·m²/kg²
C. 8.99 × 10⁹ N·m²/kg²
D. 6.67 × 10⁻¹² N·m²/kg²
Answer: 6.67 × 10⁻¹¹ N·m²/kg²
The gravitational potential energy of an object at height h above the Earth’s surface is:
A. mgh
B. Gm₁m₂ / r
C. 1/2 mv²
D. Fh
Answer: mgh
The gravitational potential energy of an object at height h from the Earth’s surface is:
A. mgh
B. Gm₁m₂ / r
C. 1/2 mv²
D. Fh
Answer: mgh
The gravitational acceleration on the surface of Mars is approximately:
A. 3.7 m/s²
B. 9.8 m/s²
C. 1.6 m/s²
D. 8.9 m/s²
Answer: 3.7 m/s²
The gravitational force between two objects with masses m₁ and m₂ is:
A. Proportional to the product of their masses
B. Inversely proportional to their masses
C. Inversely proportional to the square of the distance between them
D. Both (A) and (C)
Answer: Both (A) and (C)
The gravitational potential energy of an object is zero:
A. At an infinite distance from the Earth
B. At the surface of the Earth
C. At the center of the Earth
D. At a height equal to Earth's radius
Answer: At an infinite distance from the Earth
The gravitational force between two objects with masses m₁ and m₂ separated by distance r is:
A. G m₁ m₂ / r²
B. G m₁ m₂ / r
C. G m₁ m₂
D. G / (m₁ m₂)
Answer: G m₁ m₂ / r²
The gravitational constant G is:
A. 6.67 × 10⁻¹¹ N·m²/kg²
B. 9.81 × 10⁻¹¹ N·m²/kg²
C. 8.99 × 10⁹ N·m²/kg²
D. 6.67 × 10⁻¹² N·m²/kg²
Answer: 6.67 × 10⁻¹¹ N·m²/kg²