Class 11 Physics MCQ Chapter 8 Gravitation English Medium
Are you looking for Class 11 Physics MCQ Chapter 8 Gravitation English Medium? If yes, then this article is the perfect study resource for AHSEC Higher Secondary First Year students. Here, you will find important multiple-choice questions (MCQs) with answers that will help you prepare effectively for your Physics examinations.
The chapter Gravitation explains one of the fundamental forces of nature that governs the motion of planets, satellites, and other celestial bodies. Students will learn about Newton’s Law of Universal Gravitation, gravitational force, acceleration due to gravity, gravitational potential energy, escape velocity, orbital velocity, and satellites. These concepts are important for understanding both terrestrial and astronomical phenomena.
The MCQs provided here are based on the latest AHSEC syllabus and examination pattern. They are designed to help students revise key concepts, strengthen problem-solving skills, and become familiar with exam-oriented objective questions. Regular practice can improve accuracy, conceptual clarity, and confidence before examinations.
Whether you are preparing for class tests, annual examinations, or the AHSEC HS First Year Final Examination, these MCQ solutions will help you master the chapter and achieve better results in Physics.
Part I
Class 11 Physics MCQ Chapter 8 Gravitation English Medium
VSA & MCQs
I. Very Short Answer (VSA) Questions with Answers
Q. What is gravitation?
Ans: Gravitation is the force of attraction between any two masses in the universe.
Q. State Newton’s law of gravitation.
Ans: Every two bodies attract each other with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Q. What is acceleration due to gravity?
Ans: The acceleration produced in a body due to Earth’s gravitational pull.
Q. What is the weight of a body?
Ans: Weight is the gravitational force acting on a body.
Q. What is mass?
Ans: Mass is the quantity of matter contained in a body.
Q. What is free fall?
Ans: Motion of a body under the influence of gravity alone.
Q. What is escape velocity?
Ans: The minimum velocity required to escape Earth’s gravitational field.
Q. What is orbital velocity?
Ans: The velocity required for a satellite to remain in orbit around Earth.
Q. What is a geostationary satellite?
Ans: A satellite that appears stationary relative to Earth.
Q. What is the time period of a geostationary satellite?
Ans: 24 hours.
Q. What is gravitational potential energy?
Ans: Energy possessed by a body due to its position in a gravitational field.
Q. What is gravitational potential?
Ans: Work done per unit mass in bringing a body from infinity to a point.
Q. What is meant by weightlessness?
Ans: The condition in which apparent weight becomes zero.
Q. Why does the Moon revolve around Earth?
Ans: Due to the gravitational attraction between Earth and the Moon.
Q. What happens to (g) with an increase in height?
Ans: (g) decreases with an increase in height.
Q. What is Kepler’s first law?
Ans: Planets move around the Sun in elliptical orbits with the Sun at one focus.
II. Multiple Choice Questions (MCQs)
Q. The gravitational force between two bodies depends upon:
(a) Their colour
(b) Their masses
(c) Their temperature
(d) Their shape
Ans: (b) Their masses
Q. The weight of a body is maximum at:
(a) Equator
(b) Poles
(c) Centre of Earth
(d) Space
Ans: (b) Poles
Q. Which quantity remains constant everywhere?
(a) Weight
(b) Mass
(c) Gravity
(d) (g)
Ans: (b) Mass
Q. Escape velocity from Earth is approximately:
(a) 11.2 km/s
(b) 7.9 km/s
(c) 9.8 km/s
(d) 5.6 km/s
Ans: (a) 11.2 km/s
Q. Orbital velocity of a satellite near Earth is approximately:
(a) 5 km/s
(b) 7.9 km/s
(c) 11.2 km/s
(d) 15 km/s
Ans: (b) 7.9 km/s
Q. Weight is equal to:
(a) (mv)
(b) (mg)
(c) (ma)
(d) (m/g)
Ans: (b) (mg)
Q. Which of the following is a scalar quantity?
(a) Weight
(b) Gravitational force
(c) Mass
(d) Acceleration due to gravity
Ans: (c) Mass
Q. The force keeping planets in orbit around the Sun is:
(a) Magnetic force
(b) Nuclear force
(c) Gravitational force
(d) Frictional force
Ans: (c) Gravitational force
Q. The value of (g) at the centre of Earth is:
(a) Maximum
(b) Minimum
(c) Zero
(d) Infinite
Ans: (c) Zero
Q. Which law explains planetary motion?
(a) Newton’s laws
(b) Kepler’s laws
(c) Ohm’s law
(d) Hooke’s law
Ans: (b) Kepler’s laws
Q. The path of planets around the Sun is:
(a) Circular
(b) Elliptical
(c) Parabolic
(d) Straight line
Ans: (b) Elliptical
Q. Apparent weightlessness occurs in:
(a) Free fall
(b) Rest
(c) Uniform motion
(d) Circular motion only
Ans: (a) Free fall
Q. Which satellite appears stationary from Earth?
(a) Polar satellite
(b) Artificial satellite
(c) Geostationary satellite
(d) Weather satellite
Ans: (c) Geostationary satellite
Q. The time period of a geostationary satellite is:
(a) 12 hours
(b) 18 hours
(c) 24 hours
(d) 48 hours
Ans: (c) 24 hours
Q. The value of (g) decreases with:
(a) Increase in mass
(b) Increase in height
(c) Increase in density
(d) Increase in weight
Ans: (b) Increase in height
Q. Gravitational force is always:
(a) Repulsive
(b) Attractive
(c) Zero
(d) Variable
Ans: (b) Attractive
Q. The gravitational force between two bodies becomes four times when the distance becomes:
(a) Double
(b) Half
(c) Triple
(d) Four times
Ans: (b) Half
Q. The escape velocity depends on:
(a) Mass of body only
(b) Radius of the Earth only
(c) Mass and radius of the planet
(d) Velocity of light
Ans: (c) Mass and radius of the planet
Q. The SI unit of gravitational potential is:
(a) Joule
(b) Joule/kg
(c) Newton
(d) Watt
Ans: (b) Joule/kg
Q. Which quantity changes from place to place?
(a) Mass
(b) Density
(c) Weight
(d) Volume
Ans: (c) Weight
Q. The gravitational potential at infinity is taken as:
(a) One
(b) Maximum
(c) Zero
(d) Infinite
Ans: (c) Zero
Q. A satellite revolves around Earth due to:
(a) Electrostatic force
(b) Frictional force
(c) Gravitational force
(d) Magnetic force
Ans: (c) Gravitational force
Q. Which of the following is dimensionless?
(a) Gravitational force
(b) Gravitational constant
(c) Relative density
(d) Weight
Ans: (c) Relative density
Q. The force of gravity between Earth and Moon forms an action-reaction pair according to:
(a) Newton’s First Law
(b) Newton’s Second Law
(c) Newton’s Third Law
(d) Kepler’s Law
Ans: (c) Newton’s Third Law
Q. The weight of a body at the Moon’s surface is:
(a) Greater than on Earth
(b) Less than on Earth
(c) Equal to Earth
(d) Zero
Ans: (b) Less than on Earth
Q. Which quantity is responsible for tides in oceans?
(a) Atmospheric pressure
(b) Gravitational pull of the Moon
(c) Wind energy
(d) Earth’s rotation only
Ans: (b) Gravitational pull of the Moon
Q. Assertion (A): The weight of a body changes from place to place.
Reason (R): Acceleration due to gravity changes from place to place.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): Astronauts feel weightless in satellites.
Reason (R): Satellites and astronauts are in continuous free fall.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): Gravitational force is always attractive.
Reason (R): Masses always attract each other.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): Mass remains constant everywhere.
Reason (R): Mass is independent of gravitational acceleration.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): Escape velocity is greater than orbital velocity.
Reason (R): More speed is needed to completely escape Earth’s gravity.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): The value of (g) decreases with height.
Reason (R): Gravitational force decreases with an increase in distance from Earth’s centre.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
Q. Assertion (A): Geostationary satellites appear stationary from Earth.
Reason (R): Their time period is equal to Earth’s rotational period.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false, but R is true.
Ans: (a) Both A and R are true, and R is the correct explanation of A.
