Mechanics and Dynamics MCQs January 8, 2026August 9, 2024 by u930973931_answers 10 min Score: 0 Attempted: 0/10 Subscribe 1. Newton’s First Law of Motion states that an object at rest will remain at rest unless: (A) It is in a vacuum (B) The object is heated (C) The object is cooled (D) A force is applied 2. The unit of force in the International System of Units (SI) is: (A) Joule (B) Pascal (C) Newton (D) Watt 3. What is the acceleration of an object in free fall near the Earth’s surface? (A) 9.8 m/s² (B) 1.6 m/s² (C) 5 m/s² (D) 0 m/s² 4. The product of mass and velocity is called: (A) Force (B) Momentum (C) Acceleration (D) Energy 5. The rate of change of velocity is known as: (A) Speed (B) Displacement (C) Acceleration (D) Force 6. A body moving in a circular path with a constant speed has: (A) Zero acceleration (B) Constant velocity (C) Tangential force (D) Centripetal acceleration 7. The work done when a force of 10 N moves an object 2 meters is: (A) 5 J (B) 15 J (C) 10 J (D) 20 J 8. Kinetic energy of an object is given by: (A) 1/2 mv² (B) mgh (C) Fd (D) kx² 9. Potential energy of an object at height is given by: (A) 1/2 mv² (B) mgh (C) Fd (D) 1/2 kx² 10. What is the unit of work in the International System of Units (SI)? (A) Joule (B) Newton (C) Pascal (D) Watt