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Motion around an axis (internal vs. external) – MCQs

1. Motion around an axis is called:

(A) Linear motion


(B) Angular motion


(C) Translatory motion


(D) Projectile motion



2. Internal axis of rotation refers to motion around:

(A) An axis within the body


(B) An axis outside the body


(C) A fixed external object


(D) A straight line



3. External axis of rotation refers to motion around:

(A) A joint in the body


(B) An axis outside the body


(C) The center of gravity


(D) A straight path



4. Example of motion around an internal axis is:

(A) Rotation of the arm at the shoulder


(B) Running in a straight line


(C) Swinging a bat


(D) Throwing a ball



5. Example of motion around an external axis is:

(A) Somersault


(B) Flexion of the elbow


(C) Rotation of the head


(D) Turning a key



6. In biomechanics, internal axis rotation usually occurs at:

(A) Joints


(B) Muscles


(C) Skin


(D) Ligaments



7. External axis rotation in sports is commonly seen in:

(A) Gymnastics


(B) Walking


(C) Cycling


(D) Rowing



8. The axis of rotation in internal angular motion passes through:

(A) Center of mass of the body segment


(B) Outside the body


(C) Only the head


(D) None of the above



9. The axis of rotation in external angular motion passes:

(A) Inside the joint


(B) Through a point outside the body


(C) Through the ligament


(D) Through the tendon



10. Turning a doorknob is an example of rotation around:

(A) Internal axis


(B) External axis


(C) Linear axis


(D) Fixed axis only



11. A cartwheel performed in gymnastics is an example of:

(A) Internal axis rotation


(B) External axis rotation


(C) Rectilinear motion


(D) Projectile motion



12. Rotation of the head on the neck occurs around:

(A) Internal axis


(B) External axis


(C) Linear axis


(D) None of the above



13. A diver rotating in mid-air is rotating around:

(A) Internal axis


(B) External axis


(C) Linear axis


(D) Translational axis



14. Which of these best represents internal axis motion?

(A) Knee flexion


(B) Swinging on a bar


(C) Pole vault rotation


(D) Cartwheel



15. Which of these best represents external axis motion?

(A) Raising your arm


(B) Turning your wrist


(C) Somersault


(D) Bending elbow



16. In angular motion, internal axis is located at:

(A) Joint centers


(B) Outside the body


(C) Support base


(D) Muscles only



17. During a bicycle wheel spinning, the rim shows:

(A) External axis motion


(B) Internal axis motion


(C) Rectilinear motion


(D) Vibrational motion



18. During a hammer throw, the hammer rotates around:

(A) Its own axis (internal)


(B) The thrower’s body axis (external)


(C) Both internal and external axis


(D) None of the above



19. Human walking involves:

(A) Internal axis motion only


(B) External axis motion only


(C) Both internal and external axis motion


(D) No axis motion



20. A gymnast spinning on a high bar rotates around:

(A) Internal axis


(B) External axis


(C) Linear axis


(D) Horizontal translation



21. Knee extension is an example of rotation about:

(A) Internal axis


(B) External axis


(C) Both axes


(D) No axis



22. External axis motion in athletics is seen in:

(A) Discus throw


(B) Elbow flexion


(C) Shoulder rotation


(D) Head nodding



23. A planet spinning around its own axis represents:

(A) Internal axis motion


(B) External axis motion


(C) Rectilinear motion


(D) Translatory motion



24. A planet revolving around the sun represents:

(A) Internal axis motion


(B) External axis motion


(C) Vibrational motion


(D) Translational motion only



25. An ice skater spinning on one foot shows:

(A) Internal axis motion


(B) External axis motion


(C) Both axes motion


(D) Rectilinear motion



26. When a gymnast performs a forward roll, it is:

(A) Internal axis rotation


(B) External axis rotation


(C) Both


(D) Neither



27. Rotation of the shoulder joint is classified as:

(A) Internal axis


(B) External axis


(C) Linear displacement


(D) Vibrational axis



28. Which axis of rotation is most common in daily activities?

(A) Internal axis


(B) External axis


(C) Both equally


(D) None



29. Which axis of rotation is more common in gymnastics?

(A) Internal axis


(B) External axis


(C) Both equally


(D) None



30. When a child swings on a merry-go-round, it shows:

(A) Internal axis motion


(B) External axis motion


(C) Rectilinear motion


(D) Projectile motion



31. In biomechanics, joint angular movements are usually:

(A) Internal axis motions


(B) External axis motions


(C) Linear motions


(D) None



32. Tumbling in gymnastics mainly involves:

(A) External axis motion


(B) Internal axis motion


(C) Oscillatory motion


(D) Rectilinear motion



33. The elbow hinge acts as:

(A) Internal axis of rotation


(B) External axis of rotation


(C) Linear pivot


(D) None



34. During a high jump flip, the athlete rotates around:

(A) External axis


(B) Internal axis


(C) Both


(D) None



35. Rotation around the longitudinal axis of the body includes:

(A) Somersault


(B) Twisting in gymnastics


(C) Elbow flexion


(D) Wrist extension



36. Rotation around the transverse axis of the body includes:

(A) Forward roll


(B) Turning door knob


(C) Knee bending


(D) Shoulder abduction



37. Rotation around the frontal axis of the body includes:

(A) Cartwheel


(B) Flexion of arm


(C) Wrist supination


(D) Neck rotation



38. Which of these is NOT external axis motion?

(A) Cartwheel


(B) Somersault


(C) Head nodding


(D) Forward roll



39. Swinging a cricket bat involves:

(A) Internal axis motion


(B) External axis motion


(C) Rectilinear motion


(D) Oscillatory motion



40. Internal axis motion is crucial for:

(A) Joint mobility


(B) Full body flips


(C) Balance maintenance


(D) Both A and C



41. External axis motion is crucial for:

(A) Sports like gymnastics and diving


(B) Simple daily activities


(C) Joint rotations


(D) None



42. External axis rotation occurs mostly when the body:

(A) Is fixed at one point


(B) Moves freely in space


(C) Has no displacement


(D) Rotates a single joint



43. When throwing a discus, the discus rotates around:

(A) Its internal axis


(B) Athlete’s body axis (external)


(C) Both


(D) None



44. Which motion is more energy demanding?

(A) Internal axis motion


(B) External axis motion


(C) Both equally


(D) None



45. Which motion is mainly seen in joint physiotherapy exercises?

(A) Internal axis


(B) External axis


(C) Both


(D) None



46. A swing ride in an amusement park demonstrates:

(A) External axis motion


(B) Internal axis motion


(C) Linear motion


(D) Vibrational motion



47. In biomechanics, angular motion is classified based on:

(A) Internal vs External axis


(B) Linear vs Angular


(C) Rotational vs Translational


(D) Torque vs Force



48. Most rehabilitation movements target:

(A) Internal axis motions


(B) External axis motions


(C) Both


(D) None



49. A gymnast’s twist in mid-air occurs around:

(A) Longitudinal external axis


(B) Transverse internal axis


(C) Frontal internal axis


(D) None



50. Angular motion around an internal or external axis is a:

(A) Sub-type of rotational motion


(B) Sub-type of linear motion


(C) Sub-type of vibrational motion


(D) Sub-type of translational motion



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