Center of Mass and Force Distribution – MCQs 50 Score: 0 Attempted: 0/50 Subscribe 1. The center of mass of the human body in anatomical position is located near: (A) Knee joint (B) Hip joint (C) Second sacral vertebra (D) Thoracic vertebra 2. The center of mass is defined as the point where: (A) All weight acts equally (B) Balance is impossible (C) Only gravity acts (D) Joints are aligned 3. When standing upright, the line of gravity passes through the: (A) Head and shoulders (B) Center of mass (C) Arms and feet (D) Pelvis only 4. Lowering the center of mass generally: (A) Reduces stability (B) Increases stability (C) Has no effect (D) Shifts balance laterally 5. A wider base of support with the center of mass inside it leads to: (A) Poor balance (B) Greater stability (C) Instability (D) Falling forward 6. In standing, if the center of mass moves outside the base of support, the body will: (A) Stay balanced (B) Lose balance (C) Increase strength (D) Improve posture 7. Distribution of forces in the body mainly occurs through: (A) Muscles, joints, and bones (B) Skin and hair (C) Only muscles (D) Digestive organs 8. During walking, the center of mass moves in a: (A) Straight line (B) Sinusoidal path (C) Circular path (D) Random path 9. Carrying weight overhead shifts the center of mass: (A) Downward (B) Upward (C) Laterally (D) Forward 10. Carrying a heavy backpack shifts the center of mass: (A) Forward (B) Backward (C) Downward (D) Upward 11. In pregnant women, the center of mass shifts: (A) Forward (B) Backward (C) Upward (D) Sideways 12. In a squat position, the center of mass is: (A) Lowered (B) Raised (C) Neutral (D) Unchanged 13. The center of mass is easier to control when it is: (A) Higher (B) Lower (C) Lateral (D) Posterior 14. A gymnast extends arms sideways on a beam to: (A) Raise center of mass (B) Lower base of support (C) Improve balance (D) Reduce stability 15. A wheelchair athlete’s center of mass is located: (A) Lower than standing person (B) Higher than standing person (C) At the same point (D) Unchanged 16. In children, the center of mass is relatively: (A) Higher due to larger head (B) Lower due to longer legs (C) Same as adults (D) Centered at pelvis 17. The distribution of forces in standing posture is primarily through: (A) Vertebral column (B) Pelvis and lower limbs (C) Arms and shoulders (D) Neck and head 18. During running, ground reaction forces are distributed via: (A) Feet, ankles, and knees (B) Hands and arms (C) Thoracic spine (D) Head and neck 19. In lying supine, the center of mass is: (A) At head (B) At pelvis (C) Spread evenly (D) At feet 20. In high jump, athletes arch the body to: (A) Raise center of mass (B) Lower effective center of mass (C) Eliminate gravity (D) Reduce muscle use 21. In sprinting, the center of mass leans forward to: (A) Reduce acceleration (B) Increase acceleration (C) Increase stability (D) Decrease force 22. Shifting weight to one leg moves the center of mass: (A) To supporting leg (B) Away from supporting leg (C) Upward (D) Backward 23. Force distribution in the spine is shared between: (A) Vertebrae and intervertebral discs (B) Ribs and clavicle (C) Pelvis and scapula (D) Muscles only 24. Carrying a child on one hip shifts the center of mass: (A) Toward the opposite side (B) Toward the same side (C) Forward (D) Backward 25. Standing on tiptoes shifts the center of mass: (A) Forward (B) Backward (C) Lower (D) Neutral 26. Force distribution during walking is highest at the: (A) Heel strike and toe-off (B) Mid-stance (C) Swing phase (D) Arm swing 27. The effective center of mass in pole vault is lowered by: (A) Extending arms (B) Arching body around bar (C) Raising pelvis (D) Leaning head 28. In standing, equal weight distribution means each foot bears about: (A) 25% body weight (B) 50% body weight (C) 75% body weight (D) 100% body weight 29. A narrow base of support increases the likelihood of: (A) Stability (B) Instability (C) Equal force distribution (D) Neutral balance 30. Jumping and landing forces are distributed mainly through: (A) Feet, ankles, and knees (B) Arms and shoulders (C) Neck and head (D) Thoracic spine 31. In squatting with weight, center of mass moves: (A) Downward and backward (B) Upward and forward (C) Neutral (D) Laterally 32. Carrying loads on the head shifts the center of mass: (A) Upward (B) Downward (C) Sideways (D) Neutral 33. The center of mass changes with: (A) Body position (B) Muscle contraction only (C) Breathing only (D) Age only 34. Force distribution is less efficient when posture is: (A) Neutral (B) Misaligned (C) Balanced (D) Upright 35. In a cartwheel, the center of mass moves: (A) In a circular path (B) In a sinusoidal path (C) Straight line (D) Random path 36. Standing with feet apart improves stability by: (A) Widening base of support (B) Raising center of gravity (C) Reducing balance (D) Narrowing weight distribution 37. During gait, the center of mass is highest in: (A) Mid-stance (B) Heel strike (C) Toe-off (D) Swing phase 38. In seated posture, the center of mass is located near: (A) Upper thorax (B) Pelvis (C) Knees (D) Feet 39. In throwing, the center of mass shifts: (A) Forward (B) Backward (C) Sideways (D) Neutral 40. Proper weightlifting technique keeps the center of mass: (A) Close to body (B) Away from body (C) Above head (D) Behind feet 41. In side-lying position, the center of mass shifts: (A) Toward the support surface (B) Away from the support surface (C) Upward (D) Neutral 42. In a sprinter’s start position, the center of mass is: (A) Forward of base of support (B) Behind base of support (C) Neutral (D) Above base of support 43. Force distribution in standing passes from the spine to: (A) Pelvis → hips → legs → feet (B) Shoulders → arms → hands (C) Thorax → ribs → clavicle (D) Head → jaw → teeth 44. The effective center of mass in a Fosbury flop (high jump) may: (A) Pass below the bar (B) Pass above the bar (C) Remain unchanged (D) Stay neutral 45. The center of mass is a crucial factor in determining: (A) Balance and stability (B) Skin flexibility (C) Heart rate (D) Breathing pattern 46. In walking upstairs, the center of mass moves: (A) Upward and forward (B) Downward and backward (C) Neutral (D) Sideways 47. Standing on an incline shifts the center of mass: (A) Forward or backward depending on slope (B) Always downward (C) Always upward (D) Neutral 48. The center of mass in males is generally located: (A) Higher than in females (B) Lower than in females (C) At same level (D) At knee joint 49. Unequal weight distribution during standing may lead to: (A) Joint strain (B) Muscle imbalance (C) Postural deviation (D) All of the above 50. Maintaining the center of mass over the base of support ensures: (A) Balance (B) Instability (C) Weakness (D) Falling Related Posts: Mass Spectrum and Different Peaks In SpectroscopyPast Papers Introduction to Mass CommunicationMass Communication Past PapersMass Media in Pakistan Past PapersMass Com & Journalism Past PapersCenter of Gravity and Stability – MCQs