Central Force -Multiple Choice Questions Quiz

Interactive MCQs on “Central Force”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is a central force?

(a) A force that acts in the opposite direction of the velocity of an object.
(b) A force that acts perpendicular to the velocity of an object.
(c) A force that always points towards the center of a circular path.
(d) A force that acts along the line joining the center of force and the object.

Question 2: In a central force motion, the angular momentum of the particle remains constant if:

(a) The force is attractive only.
(b) The force is repulsive only.
(c) The force is inversely proportional to the distance.
(d) The force is directly proportional to the distance.

Question 3: Which of the following statements is true for a particle in uniform circular motion under a central force?

(a) The net force acting on the particle is zero.
(b) The net work done on the particle is zero.
(c) The kinetic energy of the particle is zero.
(d) The angular momentum of the particle is zero.

Question 4: What is the shape of the trajectory of an object under the influence of a central force when the force is inversely proportional to the square of the distance?

(a) Ellipse
(b) Parabola
(c) Hyperbola
(d) Circle

Question 5: In a central force field, if the total energy (E) of the particle is negative, what is the shape of the trajectory?

(a) Circle
(b) Parabola
(c) Ellipse
(d) Hyperbola

Question 6: Which of the following statements is true about the potential energy of a particle in a central force field?

(a) The potential energy is always positive.
(b) The potential energy is always negative.
(c) The potential energy is inversely proportional to the distance.
(d) The potential energy is constant.

Question 7: If a particle is under the influence of a central force and moves in a straight line, what can be said about the force?

(a) The force is repulsive.
(b) The force is attractive.
(c) The force is zero.
(d) The force is perpendicular to the motion.

Question 8: For a central force, the magnitude of the centripetal acceleration is given by:

(a) v^2/r, where v is the velocity and r is the distance from the center.
(b) r^2/v, where r is the distance from the center and v is the velocity.
(c) v/r, where v is the velocity and r is the distance from the center.
(d) r/v, where r is the distance from the center and v is the velocity.

Question 9: Which of the following statements is true regarding the potential energy of a particle in a central force field when it reaches infinite distance?

(a) The potential energy becomes zero.
(b) The potential energy becomes infinite.
(c) The potential energy remains constant.
(d) The potential energy becomes negative.

Question 10: If a central force is directly proportional to the distance, what type of motion does the particle exhibit?

(a) Circular motion
(b) Simple harmonic motion
(c) Uniform motion
(d) Keplerian motion