Biomedical Ethics & Regulations – MCQs September 2, 2025 by u930973931_answers 50 Score: 0 Attempted: 0/50 Subscribe 1. Which branch of science deals with the mechanics of the human body? (A) Anatomy (B) Biomechanics (C) Physiology (D) Kinesiology 2. What is the unit of force in biomechanics? (A) Watt (B) Newton (C) Pascal (D) Joule 3. Which type of lever is most common in the human body? (A) First-class lever (B) Second-class lever (C) Third-class lever (D) Fourth-class lever 4. The study of forces causing motion is called: (A) Kinematics (B) Kinetics (C) Statics (D) Dynamics 5. Which joint type allows the greatest range of motion? (A) Hinge joint (B) Ball and socket joint (C) Pivot joint (D) Saddle joint 6. Torque is defined as: (A) Force × Time (B) Mass × Velocity (C) Force × Distance from axis (D) Work ÷ Time 7. What type of motion occurs when all parts of a body move in a straight line? (A) Rotational motion (B) Translational motion (C) Angular motion (D) Oscillatory motion 8. The center of gravity in the human body is usually located near the: (A) Head (B) Chest (C) Pelvis (D) Feet 9. Which law of motion explains inertia? (A) First law (B) Second law (C) Third law (D) None of these 10. Work is defined as: (A) Force × Mass (B) Force ÷ Distance (C) Force × Distance (D) Mass × Velocity 11. Which type of contraction shortens the muscle during force production? (A) Eccentric (B) Isometric (C) Concentric (D) Static 12. Which tissue primarily absorbs shock in joints? (A) Bone (B) Ligament (C) Cartilage (D) Tendon 13. The SI unit of pressure is: (A) Newton (B) Pascal (C) Joule (D) Watt 14. Angular velocity is measured in: (A) m/s (B) m/s² (C) rad/s (D) N·m 15. Which bone acts as a lever in the human arm? (A) Radius (B) Ulna (C) Humerus (D) Clavicle 16. Which law relates force, mass, and acceleration? (A) Newton’s First Law (B) Newton’s Second Law (C) Newton’s Third Law (D) Hooke’s Law 17. The resistance to motion between two surfaces in contact is called: (A) Friction (B) Pressure (C) Torque (D) Work 18. Which muscle group is primarily responsible for knee extension? (A) Hamstrings (B) Quadriceps (C) Gluteals (D) Calves 19. The study of motion without considering forces is called: (A) Dynamics (B) Kinetics (C) Kinematics (D) Statics 20. The human spine mainly functions to: (A) Produce blood cells (B) Support body and allow flexibility (C) Pump blood (D) Aid respiration 21. Mechanical advantage is defined as: (A) Output force ÷ Input force (B) Input force ÷ Output force (C) Work ÷ Power (D) Force × Distance 22. Which lever type has the fulcrum between force and resistance? (A) First class (B) Second class (C) Third class (D) Fourth class 23. The Achilles tendon is an example of which lever system? (A) First class (B) Second class (C) Third class (D) None 24. The SI unit of energy is: (A) Watt (B) Pascal (C) Joule (D) Newton 25. Which part of biomechanics studies balance? (A) Statics (B) Dynamics (C) Kinematics (D) Kinetics 26. Which muscle is primarily responsible for elbow flexion? (A) Biceps brachii (B) Triceps brachii (C) Deltoid (D) Pectoralis major 27. The ability to resist changes in motion is called: (A) Momentum (B) Inertia (C) Torque (D) Power 28. Power in biomechanics is defined as: (A) Work ÷ Time (B) Force ÷ Distance (C) Mass × Velocity (D) Torque × Radius 29. Which bone bears the most weight in the body? (A) Femur (B) Tibia (C) Humerus (D) Vertebrae 30. The knee joint is an example of: (A) Ball and socket joint (B) Hinge joint (C) Pivot joint (D) Gliding joint 31. Which factor increases stability in biomechanics? (A) Raising center of gravity (B) Narrow base of support (C) Lowering center of gravity (D) Decreasing body mass 32. Which law states “For every action there is an equal and opposite reaction”? (A) Newton’s First Law (B) Newton’s Second Law (C) Newton’s Third Law (D) Hooke’s Law 33. Which type of stress is produced when a material is pulled apart? (A) Compressive stress (B) Tensile stress (C) Shear stress (D) Torsional stress 34. The gait cycle begins with: (A) Swing phase (B) Stance phase (C) Double support phase (D) Push-off phase 35. Which part of the foot acts as a lever during walking? (A) Heel (B) Toes (C) Arch (D) Ankle 36. Which joint connects the skull to the spine? (A) Atlanto-occipital joint (B) Atlanto-axial joint (C) Temporomandibular joint (D) Sacroiliac joint 37. Strain is defined as: (A) Force per unit area (B) Change in length ÷ Original length (C) Mass ÷ Volume (D) Work ÷ Time 38. Which movement decreases the angle between two bones? (A) Flexion (B) Extension (C) Abduction (D) Rotation 39. The study of the effects of internal and external forces on the human body is: (A) Physiology (B) Biomechanics (C) Pathology (D) Anatomy 40. The ankle joint is classified as a: (A) Pivot joint (B) Hinge joint (C) Ball and socket joint (D) Saddle joint 41. Which force acts opposite to the direction of motion in fluids? (A) Thrust (B) Lift (C) Drag (D) Buoyancy 42. Which principle explains buoyant force? (A) Bernoulli’s principle (B) Archimedes’ principle (C) Pascal’s law (D) Newton’s law 43. Which muscle is primarily involved in shoulder abduction? (A) Trapezius (B) Deltoid (C) Latissimus dorsi (D) Biceps 44. Which biomechanical factor determines momentum? (A) Mass × Acceleration (B) Mass × Velocity (C) Force × Distance (D) Work ÷ Time 45. The ability to return to original shape after deformation is: (A) Plasticity (B) Elasticity (C) Ductility (D) Brittleness 46. Which type of force causes twisting of a body? (A) Shear force (B) Compressive force (C) Torsional force (D) Tensile force 47. Which part of biomechanics studies movement during sports? (A) Ergonomics (B) Sports biomechanics (C) Rehabilitation biomechanics (D) Occupational biomechanics 48. The resistance offered to motion in fluid is called: (A) Buoyancy (B) Lift (C) Drag (D) Torque 49. Which muscle acts as the primary extensor of the elbow? (A) Biceps brachii (B) Triceps brachii (C) Deltoid (D) Pectoralis major 50. The study of mechanical laws in living organisms is called: (A) Physiology (B) Biophysics (C) Biomechanics (D) Pathology