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