Firefighter Mechanical Aptitude · Question
A screw is essentially a ramp (inclined plane) wrapped around a cylinder. This design allows it to:
A screw converts rotational motion into linear motion. The threads act as an inclined plane, multiplying the applied rotational force into a much larger linear
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Question: A screw is essentially a ramp (inclined plane) wrapped around a cylinder. This design allows it to:
Answer options: ✅ Convert rotational motion into linear motion and multiply force.
- Reduce friction and increase speed.
- Multiply force but only convert linear motion to rotational motion.
- Change direction of force without mechanical advantage.
Correct answer: Convert rotational motion into linear motion and multiply force.
Explanation: A screw converts rotational motion into linear motion. The threads act as an inclined plane, multiplying the applied rotational force into a much larger linear force for fastening or lifting.
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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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