1. Torque is defined as:
(A) Force × Mass
(B) Force × Distance from axis
(C) Force ÷ Time
(D) Force × Velocity
2. The SI unit of torque is:
(A) Joule
(B) Newton
(C) Newton-meter
(D) Watt
3. In the human body, levers are formed by:
(A) Bones
(B) Muscles
(C) Joints
(D) All of the above
4. A lever consists of:
(A) Effort, Load, Fulcrum
(B) Force, Distance, Mass
(C) Torque, Gravity, Friction
(D) Axis, Work, Velocity
5. A seesaw is an example of:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) Fourth-class lever
6. In the body, the elbow joint when extending is a:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) No lever
7. A wheelbarrow is an example of:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) Compound lever
8. Standing on tiptoes is an example of:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) Fourth-class lever
9. Most levers in the human body are:
(A) First-class
(B) Second-class
(C) Third-class
(D) Compound
10. A biceps curl (flexing elbow) represents:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) No lever
11. Torque increases when:
(A) Force decreases
(B) Distance from axis increases
(C) Mass decreases
(D) Time decreases
12. Mechanical advantage is the ratio of:
(A) Effort arm ÷ Load arm
(B) Load ÷ Effort
(C) Distance ÷ Force
(D) Force ÷ Velocity
13. If effort arm is longer than load arm, lever provides:
(A) Greater force
(B) Less force
(C) Speed advantage
(D) No advantage
14. First-class levers in the body are relatively:
(A) Rare
(B) Common
(C) Absent
(D) Constant
15. The atlanto-occipital joint (nodding head) is an example of:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) No lever
16. A lever designed for speed sacrifices:
(A) Torque
(B) Stability
(C) Mechanical advantage
(D) Distance moved
17. Force arm in levers is the distance between:
(A) Fulcrum and effort
(B) Load and effort
(C) Fulcrum and load
(D) Axis and resistance
18. Load arm in levers is the distance between:
(A) Fulcrum and load
(B) Load and effort
(C) Fulcrum and effort
(D) Effort and axis
19. Second-class levers favor:
(A) Speed
(B) Range of motion
(C) Strength
(D) Velocity
20. Third-class levers favor:
(A) Force
(B) Strength
(C) Speed and range of motion
(D) Stability
21. Torque in the human body is mainly produced by:
(A) Bones
(B) Muscles
(C) Joints
(D) Ligaments
22. When effort arm = load arm, the mechanical advantage is:
(A) Greater than 1
(B) Less than 1
(C) Equal to 1
(D) Zero
23. In third-class levers, effort is applied:
(A) Between load and fulcrum
(B) At fulcrum
(C) Beyond load
(D) At load
24. In second-class levers, load is located:
(A) Between effort and fulcrum
(B) At fulcrum
(C) Beyond effort
(D) Randomly
25. In first-class levers, fulcrum is located:
(A) Between effort and load
(B) At load
(C) At effort
(D) Randomly
26. A lever with a longer effort arm requires:
(A) Less effort force
(B) More effort force
(C) Same effort force
(D) No effort force
27. A lever with a shorter effort arm provides:
(A) Strength
(B) Speed advantage
(C) Stability
(D) No advantage
28. Which lever type is most common in sports movements?
(A) First-class
(B) Second-class
(C) Third-class
(D) Compound
29. The human knee while rising on toes acts as:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) No lever
30. The effectiveness of torque depends on:
(A) Force magnitude
(B) Perpendicular distance to axis
(C) Angle of application
(D) All of the above
31. Torque is maximum when force is applied:
(A) Parallel to lever arm
(B) Perpendicular to lever arm
(C) At zero distance
(D) At fulcrum
32. A lever’s function is to:
(A) Multiply force
(B) Multiply speed
(C) Change direction of force
(D) All of the above
33. Mechanical disadvantage occurs when:
Effort arm” onclick=”checkAnswer(‘q33’, ‘Load arm > Effort arm’)”> (A) Load arm > Effort arm
Load arm” onclick=”checkAnswer(‘q33’, ‘Load arm > Effort arm’)”> (B) Effort arm > Load arm
Effort arm’)”> (C) Both arms equal
Effort arm’)”> (D) No load present
34. The triceps acting at the elbow is a:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) Compound lever
35. The biceps acting at the elbow is a:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) No lever
36. The calf muscles lifting the body on toes act as:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) Compound lever
37. The length of lever arms in the body is determined by:
(A) Muscle attachment points
(B) Joint structure
(C) Bone length
(D) All of the above
38. When torque equals resistance torque, the lever is in:
(A) Rest
(B) Motion
(C) Equilibrium
(D) Instability
39. Lever systems are classified based on:
(A) Position of fulcrum, effort, and load
(B) Bone length only
(C) Muscle strength only
(D) Force magnitude
40. In biomechanics, torque is essential for:
(A) Movement
(B) Stability
(C) Injury prevention
(D) All of the above
41. Mechanical advantage greater than 1 means lever favors:
(A) Force
(B) Speed
(C) Distance
(D) Velocity
42. Mechanical advantage less than 1 means lever favors:
(A) Force
(B) Speed and distance
(C) Stability
(D) No advantage
43. The knee joint during kicking is an example of:
(A) First-class lever
(B) Second-class lever
(C) Third-class lever
(D) No lever
44. Lever efficiency in the body is limited by:
(A) Joint stability
(B) Muscle strength
(C) Bone structure
(D) All of the above
45. In sports, torque is critical in:
(A) Throwing
(B) Jumping
(C) Lifting
(D) All of the above
46. The force applied to create torque in the body is:
(A) Muscle contraction
(B) Bone leverage
(C) Joint movement
(D) Gravity
47. The lever system most common in lifting weights is:
(A) First-class
(B) Second-class
(C) Third-class
(D) Compound
48. The effectiveness of torque decreases if force is applied:
(A) Closer to axis
(B) Away from axis
(C) At perpendicular distance
(D) With greater effort
49. Which lever is most efficient for power movements?
(A) First-class
(B) Second-class
(C) Third-class
(D) Compound
50. Torque and lever systems in the body allow:
(A) Efficient movement
(B) Force amplification
(C) Range of motion
(D) All of the above