External vs. Internal Forces – MCQs

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1. Which of the following is an external force acting on the human body?



2. Internal forces are mainly produced by:



3. Which of the following is an example of external force?



4. Which of the following is an internal force?



5. Internal forces act:



6. Which of the following is an external force on a runner?



7. Which of the following is an example of an internal tensile force?



8. The ground reaction force is classified as:



9. The compressive force in the knee joint during squatting is:



10. Which of the following is NOT an internal force?



11. Air resistance acting on a cyclist is an example of:



12. Which force causes body segments to move relative to each other?



13. A football player kicking the ball generates __________ in the leg.



14. The weight of a person acting downward is an example of:



15. Muscle pulling on a bone is an example of:



16. Which of the following is an external contact force?



17. Internal forces can be classified into:



18. When a bone is squeezed by two opposite ends, the internal force is:



19. Which force is responsible for stretching tendons?



20. Which is an external non-contact force?



21. The push of the ground during walking is:



22. Which of the following best describes internal force?



23. The stretching of ligaments during twisting of the ankle is an example of:



24. The normal reaction force exerted by a chair on a sitting person is:



25. Which of the following generates movement of body parts?



26. Which force type maintains posture and balance?



27. During a push-up, the weight of the body is an:



28. Which of the following is NOT an example of an external force?



29. When muscles contract, the force exerted on bones is:



30. The ground pushing up on a jumping athlete is:



31. Compressive forces in bones help resist:



32. When the biceps muscle contracts, the force on the forearm is:



33. Which of these is an external force in sports?



34. Which force resists joint dislocation?



35. The downward pull of Earth on a ball is:



36. Muscle-generated forces that oppose gravity are:



37. A gymnast balancing on one hand experiences:



38. Internal compressive force in cartilage prevents:



39. Which is a correct pair?



40. The push of water on a swimmer’s body is an example of:



41. Which force helps generate joint movement in the human body?



42. Which of the following is NOT caused by external force?



43. The weight of a barbell in weightlifting is:



44. The pulling of tendons during movement is classified as:



45. The resisting force within bones during compression is:



46. During walking, the calf muscles generate:



47. The wind pushing a cyclist backward is an:



48. The cartilage resisting shear stress is an example of:



49. Which of the following is an external non-contact force?



50. Which of these statements is correct?



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