Kinetics and Kinematics – MCQs

1. Kinematics is concerned with:

(A) Description of motion without forces

(B) Forces that cause motion

(C) Muscle activation

(D) Nervous system activity

2. Kinetics deals with:

(A) Describing displacement

(B) Forces that cause motion

(C) Joint sounds

(D) Angles only

3. Displacement is classified as a:

(A) Scalar

(B) Vector

(C) Tensor

(D) Constant

4. Distance is considered a:

(A) Vector

(B) Scalar

(C) Force

(D) Momentum

5. Angular displacement is measured in:

(A) Radians or degrees

(B) Newtons

(C) Joules

(D) Watts

6. Linear velocity is:

(A) Rate of change of displacement

(B) Distance per unit time

(C) Torque per second

(D) Pressure per unit area

7. Angular velocity is expressed as:

(A) Radians per second

(B) Joules

(C) Newtons

(D) Meters

8. Acceleration is:

(A) Change in velocity per unit time

(B) Force per unit mass

(C) Work per second

(D) Torque per radian

9. Newton’s first law relates to:

(A) Inertia

(B) Acceleration

(C) Action-reaction

(D) Power

10. Newton’s second law formula is:

(A) F = ma

(B) W = Fd

(C) P = W/t

(D) T = F × r

11. Newton’s third law states:

(A) For every action, there is an equal and opposite reaction

(B) F = ma

(C) Energy is conserved

(D) Momentum is zero

12. Torque is calculated as:

(A) Force × moment arm

(B) Mass × velocity

(C) Force × distance traveled

(D) Energy × time

13. Momentum is:

(A) Mass × velocity

(B) Force × acceleration

(C) Torque × distance

(D) Power × work

14. Impulse equals:

(A) Force × time

(B) Mass × velocity

(C) Power × time

(D) Torque × angle

15. Work is calculated as:

(A) Force × distance

(B) Force × acceleration

(C) Mass × velocity

(D) Torque × angle

16. Power is defined as:

(A) Work per unit time

(B) Force per unit area

(C) Mass per unit volume

(D) Torque per second

17. Ground reaction force is an example of:

(A) Kinetics

(B) Kinematics

(C) Anatomy

(D) Physiology

18. A force plate is used to measure:

(A) Ground reaction forces

(B) Muscle strength

(C) Lung volumes

(D) Blood pressure

19. A displacement-time graph shows:

(A) Position over time

(B) Force over time

(C) Torque over angle

(D) Power over distance

20. A velocity-time graph slope indicates:

(A) Acceleration

(B) Momentum

(C) Force

(D) Distance

21. The slope of a displacement-time graph gives:

(A) Velocity

(B) Acceleration

(C) Power

(D) Force

22. The slope of a velocity-time graph gives:

(A) Acceleration

(B) Force

(C) Momentum

(D) Torque

23. Stress is defined as:

(A) Force per unit area

(B) Change in length per unit length

(C) Mass per velocity

(D) Torque per time

24. Strain is:

(A) Deformation per unit length

(B) Mass × velocity

(C) Force × distance

(D) Torque ÷ time

25. Inertia is:

(A) Resistance to change in motion

(B) Change in displacement

(C) Acceleration per mass

(D) Work per distance

26. The center of mass is:

(A) Point where body mass is balanced

(B) The midpoint of a bone

(C) Joint capsule center

(D) Force plate reading

27. Friction always acts:

(A) Opposite to motion or attempted motion

(B) Along the motion

(C) Vertically downward

(D) Toward center of gravity

28. Linear motion occurs when:

(A) All body parts move in the same direction and distance

(B) Body rotates about an axis

(C) Only joints move

(D) Muscles contract eccentrically

29. Angular motion occurs when:

(A) A body moves about a fixed axis

(B) A body moves linearly

(C) A muscle contracts isometrically

(D) Energy dissipates

30. Combined motion is:

(A) Linear + angular together

(B) Isometric contraction only

(C) Torque without force

(D) Pure rotation

31. A first-class lever example is:

(A) Neck during nodding

(B) Biceps curl

(C) Heel raise

(D) Knee extension

32. A second-class lever example is:

(A) Heel raise

(B) Biceps curl

(C) Shoulder flexion

(D) Hip abduction

33. The most common lever type in the body is:

(A) Third class

(B) First class

(C) Second class

(D) None

34. Mechanical advantage is:

(A) Output force ÷ input force

(B) Mass ÷ velocity

(C) Work ÷ time

(D) Torque ÷ distance

35. A longer lever arm increases:

(A) Torque production

(B) Stability only

(C) Velocity only

(D) Power only

36. Buoyancy force acts:

(A) Upward opposite gravity

(B) Downward with gravity

(C) Horizontally

(D) Randomly

37. Drag in swimming is caused by:

(A) Fluid resistance

(B) Gravity

(C) Muscle contraction

(D) Torque

38. Lift force in fluid mechanics is generated by:

(A) Pressure differences

(B) Gravity

(C) Friction

(D) Mass

39. Projectile motion path is:

(A) Parabolic

(B) Circular

(C) Linear

(D) Random

40. Angular momentum depends on:

(A) Mass, velocity, and radius

(B) Force only

(C) Torque only

(D) Work only

41. Conservation of momentum principle applies when:

(A) No external forces act

(B) External torque acts

(C) Muscle contraction occurs

(D) Gravity changes

42. Elastic collision means:

(A) No loss of kinetic energy

(B) Total loss of energy

(C) Only heat is produced

(D) Momentum is lost

43. Inelastic collision means:

(A) Loss of kinetic energy

(B) Perfect energy conservation

(C) No force involved

(D) Only angular momentum conserved

44. A free-body diagram helps in:

(A) Analyzing forces acting on a body

(B) Measuring velocity

(C) Tracking blood pressure

(D) Recording EMG

45. A gait analysis includes measurement of:

(A) Kinematics and kinetics of walking

(B) Lung volumes

(C) Blood sugar

(D) Heart rate only

46. Linear acceleration unit is:

(A) m/s²

(B) N·m

(C) Watt

(D) Joule

47. Angular acceleration is measured in:

(A) rad/s²

(B) m/s²

(C) Joule

(D) Watt

48. Power in rotational motion is calculated as:

(A) Torque × angular velocity

(B) Force × time

(C) Mass × velocity

(D) Torque ÷ distance

49. The center of pressure is:

(A) Point of application of ground reaction force

(B) Muscle insertion

(C) Bone midline

(D) Ligament origin

50. The study of kinetics and kinematics in physiotherapy is essential for:

(A) Gait, posture, and movement analysis

(B) Measuring blood pressure

(C) Analyzing lung volumes

(D) Studying hormones