Gravitation MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What is the universal gravitational constant (G) approximately equal to?
A. 6.67 × 10⁻¹¹ N·m²/kg²
B. 9.81 × 10⁻¹¹ N·m²/kg²
C. 6.67 × 10⁻¹² N·m²/kg²
D. 9.81 × 10⁻¹² N·m²/kg²
Answer: 6.67 × 10⁻¹¹ N·m²/kg²
Which of the following factors does not affect the gravitational potential energy of an object?
A. The object's mass.
B. The height above the reference point.
C. The object's speed.
D. The acceleration due to gravity.
Answer: The object's speed.
The escape velocity from the surface of a planet is dependent on:
A. The planet's mass and radius.
B. The planet's density and temperature.
C. The planet's atmospheric composition.
D. The planet's surface area.
Answer: The planet's mass and radius.
The gravitational force on an object depends on:
A. The mass of the object and the distance between the objects.
B. The velocity of the object and the distance between the objects.
C. The temperature of the object and the distance between the objects.
D. The shape of the object and the distance between the objects.
Answer: The mass of the object and the distance between the objects.
The gravitational force is:
A. Always attractive and decreases with increasing distance.
B. Always repulsive and decreases with increasing distance.
C. Attractive at short distances and repulsive at long distances.
D. Repulsive and increases with increasing distance.
Answer: Always attractive and decreases with increasing distance.
Which of the following statements about gravitational force is true?
A. It is always attractive and acts between any two masses.
B. It can be either attractive or repulsive depending on the masses involved.
C. It acts only between two masses that are in contact with each other.
D. It is stronger than the electrostatic force.
Answer: It is always attractive and acts between any two masses.
The gravitational force between two objects is:
A. Directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
B. Inversely proportional to the product of their masses and directly proportional to the square of the distance between them.
C. Directly proportional to the sum of their masses and inversely proportional to the distance between them.
D. Inversely proportional to the sum of their masses and directly proportional to the distance between them.
Answer: Directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
The gravitational potential energy of an object is highest when:
A. The object is farthest from the Earth.
B. The object is closest to the Earth.
C. The object is at the center of the Earth.
D. The object is in free fall.
Answer: The object is farthest from the Earth.
The acceleration due to gravity on the Moon is approximately:
A. 1.6 m/s²
B. 9.8 m/s²
C. 8.9 m/s²
D. 10 m/s²
Answer: 1.6 m/s²