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Gravitation Class 9 mcq. We covered all the Gravitation Class 9 mcq in this post for free so that you can practice well for the exam.
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mcq on Gravitation for Students
When a ball is thrown straight up, what is true about its acceleration due to gravity?
(a) It acts in the direction opposite to its motion
(b) It acts in the same direction as its motion
(c) It becomes stronger during its descent
(d) It becomes zero at its peak
Option a – It acts in the direction opposite to its motion
What does the law of universal Gravitation state about objects in the universe?
(a) Each object attracts every other object with a certain force
(b) The attraction depends on the product of their masses
(c) The force decreases with the square of the distance between them
(d) All of the above
Option d – All of the above
Which of the following are part of Kepler’s laws describing planetary motion?
(a) Planets move in elliptical paths with the Sun at one focus
(b) A line connecting a planet and the Sun sweeps equal areas in equal time
(c) The cube of the average distance of a planet is proportional to the square of its orbital time
(d) All of the above
Option d – All of the above
What expression describes the gravitational force on a planet in orbit according to Kepler?
(a) F = mg
(b) F = mv²/r
(c) F = mgh
(d) None of the above
Option a – F = mg
If the masses of two objects are halved but the distance between them remains unchanged, the gravitational force becomes
(a) One-fourth of the original force
(b) Half of the original force
(c) The same as before
(d) Twice the original force
Option a – One-fourth of the original force
Where is the acceleration due to gravity (g) the greatest?
(a) Summit of Mount Everest
(b) Top of Qutub Minar
(c) A location along the equator
(d) A site in Antarctica
Option d – A site in Antarctica
When an apple falls from a tree due to gravity, the forces involved are
(a) The Earth’s force is much stronger than the apple’s force
(b) The apple’s force is stronger than the Earth’s
(c) The Earth’s force is slightly greater
(d) Both forces are equal in magnitude
Option d – Both forces are equal in magnitude
The law of Gravitation can be used to explain
(a) Why we remain grounded on Earth
(b) The orbits of the Moon and planets
(c) Ocean tides caused by celestial bodies
(d) All of the above
Option d – All of the above
What formula represents the gravitational acceleration near Earth’s surface?
(a) g = GM/R²
(b) g = GMm/d²
(c) Both a and b
(d) Neither a nor b
Option a – g = GM/R²
What is the weight of an object at Earth’s center?
(a) Zero
(b) Infinite
(c) Equal to its surface weight multiplied by the radius
(d) Equal to its surface weight divided by the square of the radius
Option a – Zero
Why do astronauts feel weightless while orbiting Earth in a spacecraft?
(a) Because gravity becomes zero
(b) Due to inertia
(c) Because of acceleration
(d) Because of the center of gravity
Option a – Because gravity becomes zero
What is the direction of gravitational force when an object falls freely?
(a) Upward, opposite to motion
(b) Downward, in the direction of motion
(c) There is no force
(d) The force remains unchanged
Option b – Downward, in the direction of motion
What is the weight of a body at Earth’s center?
(a) Zero
(b) Infinite
(c) Same as at other locations
(d) Slightly higher than at the poles
Option a – Zero
How is an object’s weight best described?
(a) It’s the gravity contained in its Mass
(b) It represents its inertia
(c) It’s equal to its Mass but expressed differently
(d) It’s the force pulling the object towards Earth
Option d – It’s the force pulling the object towards Earth
Which factor does not affect gravitational attraction between two bodies?
(a) The distance separating them
(b) The product of their masses
(c) The sum of their masses
(d) The gravitational constant
Option c – The sum of their masses
How does gravity vary on Earth?
(a) It’s the same throughout space
(b) It’s uniform at all locations on Earth
(c) It changes with latitude
(d) It’s stronger on the Moon due to smaller size
Option c – It changes with latitude
Newton’s law of Gravitation applies to
(a) Only Solar system objects
(b) Only Earth-bound bodies
(c) Only planets
(d) Every object in the universe
Option d – Every object in the universe
The force that maintains circular motion and causes acceleration acts
(a) Toward the center of the circle
(b) Away from the center
(c) Along the tangent to the path
(d) In the same direction as motion
Option a – Toward the center of the circle
Regardless of size, all objects fall with
(a) The same force
(b) The same acceleration
(c) The same speed
(d) The same momentum
Option b – The same acceleration
We covered all the Gravitation Class 9 mcq above in this post for free so that you can practice well for the exam.
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