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Mechanics MCQs

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1. Which of the following quantities is a vector?





2. The force that opposes the motion of objects through air is called:





3. Newton’s first law of motion is also known as the law of:





4. An object at rest will remain at rest unless acted upon by an external force. This statement describes which law of motion?





5. The SI unit of force is:





6. When a car makes a sharp turn, passengers feel a force pulling them outward. This force is known as:





7. When you push a heavy box across the floor, the force exerted by the box on the floor is an example of:





8. The tendency of an object to resist changes in its state of motion is called:





9. A ball is thrown vertically upward. At the highest point of its trajectory, its acceleration is:





10. The force required to maintain circular motion is directed:





11. The work done by a force is defined as the product of:





12. Which of the following is a conservative force?





13. The rate of change of momentum is equal to:





14. The vector sum of all forces acting on an object is known as:





15. If an object is moving with constant velocity, which statement about the forces acting on it must be true?





16. When an object is in free fall, the only force acting on it is:





17. Two objects of different masses are dropped from the same height in a vacuum. Which object will hit the ground first?





18. The force exerted per unit area is known as:





19. The force required to keep an object moving with constant velocity through a fluid is proportional to the:





20. The force that acts on a body and causes it to move along a circular path is called:





21. The coefficient of restitution is a measure of the:





22. According to Newton’s second law of motion, the acceleration of an object is directly proportional to the:





23. When a force is applied to an object but the object does not move, the force is:





24. The point at which all the weight of an object appears to act is called its:





25. The work-energy principle states that the work done on an object is equal to the change in its:





26. The force of attraction between any two objects in the universe is called:





27. A box is pushed horizontally across a floor with a constant velocity. The frictional force acting on the box is:





28. Which of the following is an example of projectile motion?





29. The force that opposes the relative motion of two surfaces in contact is known as:





30. An elevator is moving upward with constant speed. The force experienced by a person inside the elevator is:





31. The unit of momentum in the SI system is:





32. When a car makes a sharp turn, what type of force keeps it moving in a circular path?





33. A body of mass 5 kg is thrown vertically upwards with an initial velocity of 10 m/s. What is the kinetic energy of the body at its highest point?





34. The amount of matter in an object is called its:





35. Which of the following is not a unit of power?





36. The property of a body that resists change in its state of motion is called:





37. An object weighs 10 N in air. When fully immersed in water, it weighs 6 N. What is the buoyant force acting on the object?





38. The force of gravity on an object is called its:





39. The force that acts on an object to return it to equilibrium position is called:





40. Which of the following is a non-contact force?





41. Two forces, 5 N and 12 N, act on an object in the same direction. What is the net force on the object?





42. When an object is thrown upward, the acceleration due to gravity:





43. Which of the following is not a unit of force?





44. The force that opposes the motion of an object sliding on a surface is known as:





45. The gravitational force between two objects depends on their:





46. The acceleration due to gravity on the surface of the Earth is approximately:





47. When a net external force acts on an object, which of the following can happen?





48. The momentum of an object is defined as its:





49. When a skydiver falls through the air, the force of air resistance acting upward on the skydiver is also called:





50. Which of the following statements is true about an object in equilibrium?





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