Firefighter Mechanical Aptitude · Question
Which of these concepts explains why it's easier to loosen a tight nut with a longer wrench?
Torque is the rotational equivalent of force and is calculated as force multiplied by the perpendicular distance from the pivot point (fulcrum). A longer wrench
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Question: Which of these concepts explains why it's easier to loosen a tight nut with a longer wrench?
Answer options: ✅ Torque
- Kinetic energy
- Potential energy
- Centripetal force
Correct answer: Torque
Explanation: Torque is the rotational equivalent of force and is calculated as force multiplied by the perpendicular distance from the pivot point (fulcrum). A longer wrench increases this distance, thus increasing the torque for the same amount of applied force.
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- Scenario 1: Which simple machine uses a fulcrum to multiply force or change the direction of force?
- Scenario 2: If a hydraulic jack has a small piston with an area of 5 cm² and a large piston with an area of 50
- Scenario 3: Which of the following would require the MOST force to move?
- Scenario 4: A rope is tied to a heavy box. Instead of pulling the box directly, a firefighter wraps the rope a
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