Gravitation Practice Questions
Class 9 · Science · 2232 free MCQs with instant results and detailed explanations.
2232
Total
775
Easy
1086
Medium
371
Hard
Start Practicing Gravitation
Take a timed quiz or customize your practice session
Topics in Gravitation
Weight and Mass
449
Thrust and Pressure
505
Universal Law of Gravitation
740
Free Fall
538
Sample Questions from Gravitation
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What does the Universal Law of Gravitation state?
A.
Every point mass attracts every other point mass.
B.
Only large masses can attract small masses.
C.
Gravity only acts on the surface of Earth.
D.
Gravity is dependent on temperature.
Show Answer & Explanation
Correct Answer: A
The Universal Law of Gravitation states that every point mass attracts every other point mass in the universe, with a force proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Q2
Easy
What is the formula for gravitational force between two masses?
A.
F = G(m1 * m2) / r^2
B.
F = m1 * m2 / r^2
C.
F = G(m1 + m2) / r
D.
F = G(m1 * m2) * r^2
Show Answer & Explanation
Correct Answer: A
The correct formula is F = G(m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between their centers.
Q3
Easy
Which of the following factors does NOT affect the gravitational force between two objects?
A.
The mass of the objects
B.
The distance between their centers
C.
The color of the objects
D.
The gravitational constant
Show Answer & Explanation
Correct Answer: C
The color of the objects does not affect the gravitational force between them; only their masses and the distance between them do.
Q4
Medium
What does Newton's universal law of gravitation state?
A.
Every particle attracts every other particle with a force directly proportional to the product of their masses.
B.
Gravity is only a force of attraction between Earth and objects.
C.
Matter does not attract matter unless in motion.
D.
Gravity only acts at a distance and not through intervening matter.
Show Answer & Explanation
Correct Answer: A
Newton's law explains that any two masses attract each other with a force that depends on their masses and the distance between them.
Q5
Medium
If the mass of an object is doubled, how is the gravitational force affected?
A.
It stays the same.
B.
It doubles.
C.
It quadruples.
D.
It halves.
Show Answer & Explanation
Correct Answer: B
According to the law of gravitation, force is directly proportional to the product of the masses, so doubling one mass doubles the force.
Q6
Medium
Which of the following factors does NOT affect the gravitational force between two masses?
A.
The masses of the objects
B.
The distance between the objects
C.
The size of the objects
D.
The gravitational constant
Show Answer & Explanation
Correct Answer: C
The gravitational force depends only on the masses and the distance, not the physical size of the objects.
Q7
Medium
If the distance between two masses is tripled, how does the gravitational force change?
A.
It remains the same.
B.
It is reduced to one-third.
C.
It is reduced to one-ninth.
D.
It is tripled.
Show Answer & Explanation
Correct Answer: C
Gravitational force varies inversely with the square of the distance, so tripling the distance reduces the force to 1/9.
Q8
Hard
The universal law of gravitation states that every object in the universe attracts every other object. Which of the following quantities does NOT affect the gravitational force between two objects?
A.
Mass of the first object
B.
Mass of the second object
C.
Distance between the objects
D.
Shape of the objects
Show Answer & Explanation
Correct Answer: D
The gravitational force depends on the masses of the objects and the distance between them, but not on their shape.
Q9
Hard
If the mass of Earth were to double, what would happen to the gravitational force experienced by an object at its surface?
A.
It would double
B.
It would triple
C.
It would remain the same
D.
It would become zero
Show Answer & Explanation
Correct Answer: A
According to the law of gravitation, if the mass of Earth doubles, the force also doubles since it is directly proportional to mass.
Q10
Hard
Which of the following correctly describes the relationship between gravitational force and distance based on the universal law of gravitation?
A.
Directly proportional to the distance
B.
Inversely proportional to the distance
C.
Inversely proportional to the square of the distance
D.
None of the above
Show Answer & Explanation
Correct Answer: C
The universal law of gravitation states that gravitational force is inversely proportional to the square of the distance between two masses.
Showing 10 of 2232 questions. Start a quiz to practice all questions with scoring and timer.
Practice All 2232 Questions →Other Class 9 Subjects
Gravitation — Class 9 Science Practice Questions Online
This page contains 2232 practice MCQs for the chapter Gravitation in Class 9 Science. The questions are organized by difficulty — 775 easy, 1086 medium, 371 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.