Biomechanical Analysis of Movement – MCQs

1. Biomechanics primarily studies:
(A) Forces and their effect on the body
(B) Digestive processes
(C) Blood circulation
(D) Cognitive functions

2. Kinematics focuses on:
(A) Motion without regard to forces
(B) Force production
(C) Muscle metabolism
(D) Nerve conduction

3. Kinetics focuses on:
(A) Forces causing motion
(B) Joint angles
(C) Range of motion only
(D) Muscle fatigue

4. Displacement measures:
(A) Change in position
(B) Speed
(C) Mass
(D) Force

5. Velocity is defined as:
(A) Rate of change of displacement
(B) Total distance traveled
(C) Time taken to stand
(D) Force applied

6. Acceleration is:
(A) Change in velocity over time
(B) Constant speed
(C) Mass times velocity
(D) Force per unit area

7. In 2D biomechanical analysis, movements are analyzed in:
(A) Two planes of motion
(B) Three planes
(C) One plane only
(D) None of the above

8. Center of mass represents:
(A) Average location of body mass
(B) Point of maximum strength
(C) Point of joint rotation
(D) Muscle insertion point

9. Ground reaction force is:
(A) Force exerted by the ground on the body
(B) Force produced by muscles only
(C) Gravitational pull only
(D) Friction at joints

10. Torque is:
(A) Rotational force around a joint
(B) Linear displacement
(C) Acceleration
(D) Center of mass

11. Moment arm refers to:
(A) Perpendicular distance from force to axis of rotation
(B) Muscle length
(C) Speed of motion
(D) Body weight

12. Mechanical advantage is:
(A) Ratio of output force to input force
(B) Joint range of motion
(C) Muscle fatigue rate
(D) Time to complete movement

13. Open kinetic chain exercises are analyzed using:
(A) Distal segment free
(B) Distal segment fixed
(C) Both arms fixed
(D) Whole body stationary

14. Closed kinetic chain exercises involve:
(A) Distal segment fixed
(B) Distal segment free
(C) Isolated joint movement only
(D) No movement

15. Angular velocity measures:
(A) Rate of change of joint angle
(B) Force applied
(C) Center of mass
(D) Displacement

16. Linear momentum is:
(A) Mass times velocity
(B) Mass times acceleration
(C) Force per area
(D) Torque

17. Impulse is defined as:
(A) Force multiplied by time
(B) Mass times velocity
(C) Change in angle
(D) Work done per unit distance

18. Work in biomechanics is:
(A) Force applied over a distance
(B) Force per unit area
(C) Power multiplied by velocity
(D) Torque times time

19. Power is defined as:
(A) Work done per unit time
(B) Force applied
(C) Torque per second
(D) Mass times acceleration

20. Stress on a tissue is:
(A) Force per unit area
(B) Force multiplied by distance
(C) Mass per unit volume
(D) Acceleration divided by mass

21. Strain represents:
(A) Deformation per original length
(B) Force applied
(C) Speed of motion
(D) Torque

22. Inertia is:
(A) Resistance to change in motion
(B) Force applied
(C) Muscle contraction
(D) Center of mass

23. Newton’s first law states:
(A) Object stays at rest or in uniform motion unless acted on by a force
(B) Force equals mass times acceleration
(C) Action equals reaction
(D) Torque is constant

24. Newton’s second law:
(A) F = ma
(B) F = mv
(C) T = r × F
(D) W = F × d

25. Newton’s third law:
(A) Action equals reaction
(B) Acceleration equals force divided by mass
(C) Work equals force times distance
(D) Torque equals force times moment arm

26. During gait analysis, vertical ground reaction force has:
(A) Two peaks during stance phase
(B) Single peak only
(C) No peaks
(D) Constant value

27. Biomechanical analysis of jumping focuses on:
(A) Force production, center of mass displacement, and power
(B) Finger strength
(C) Shoulder flexion only
(D) Wrist stability

28. Biomechanical analysis is useful in:
(A) Injury prevention and performance optimization
(B) Finger dexterity
(C) Elbow mobility only
(D) Wrist flexion only

29. Moment of inertia depends on:
(A) Mass and distance from axis of rotation
(B) Muscle strength
(C) Joint range
(D) Ground reaction force

30. Center of pressure represents:
(A) Point of application of ground reaction force
(B) Center of mass
(C) Muscle origin
(D) Torque

31. Joint reaction force analysis helps to determine:
(A) Load transmitted across joint
(B) Muscle activation only
(C) Flexibility
(D) Endurance

32. Biomechanical levers in the body consist of:
(A) Bones, joints, and muscles
(B) Muscles only
(C) Joints only
(D) Ligaments only

33. First-class lever in the body example:
(A) Neck extension
(B) Elbow flexion
(C) Plantarflexion
(D) Knee extension

34. Second-class lever in the body example:
(A) Heel raise (plantarflexion)
(B) Neck flexion
(C) Shoulder abduction
(D) Elbow extension

35. Third-class lever in the body example:
(A) Biceps curl
(B) Calf raise
(C) Neck extension
(D) Jaw closure

36. Range of motion analysis is part of:
(A) Kinematic assessment
(B) Kinetic assessment
(C) Muscle strength only
(D) Balance testing

37. EMG analysis in biomechanics evaluates:
(A) Muscle activation patterns
(B) Joint angles
(C) Center of mass
(D) Torque only

38. Force plate analysis helps to measure:
(A) Ground reaction forces
(B) Muscle contraction
(C) Joint angles
(D) Range of motion

39. Video-based motion analysis measures:
(A) Joint displacement, velocity, and acceleration
(B) Force only
(C) Muscle fatigue only
(D) Heart rate only

40. Biomechanical efficiency is defined as:
(A) Ratio of mechanical work output to energy input
(B) Muscle length
(C) Joint angle
(D) Force per unit area

41. Peak torque in a joint is measured during:
(A) Isokinetic testing
(B) Walking only
(C) Stretching only
(D) Postural control

42. Center of mass shifts during running:
(A) Forward and upward cyclically
(B) Sideways only
(C) Remains static
(D) Rotates only

43. Biomechanical analysis assists clinicians in:
(A) Designing rehabilitation programs
(B) Finger strengthening only
(C) Wrist mobility only
(D) Elbow flexion only

44. Angular displacement of a joint is measured in:
(A) Degrees or radians
(B) Newtons
(C) Meters
(D) Seconds

45. Biomechanical power during movement is:
(A) Product of torque and angular velocity
(B) Product of mass and acceleration
(C) Product of force and distance only
(D) Center of mass displacement

46. Stretch-shortening cycle in biomechanics refers to:
(A) Eccentric followed by concentric muscle action
(B) Concentric only
(C) Isometric only
(D) Eccentric only

47. Biomechanical modeling can be:
(A) 2D or 3D
(B) Only 2D
(C) Only 3D
(D) None of the above

48. Joint angle analysis helps in:
(A) Assessing movement efficiency
(B) Measuring grip strength only
(C) Measuring respiration
(D) Measuring heart rate

49. Biomechanical analysis of gait can determine:
(A) Deviations, joint loads, and efficiency
(B) Finger dexterity
(C) Shoulder ROM only
(D) Wrist mobility only

50. Functional biomechanics integrates:
(A) Motion, force, and muscle activity
(B) Only muscle strength
(C) Only joint range
(D) Only cardiovascular data