In a wheel and axle system, the mechanical advantage profile changes depending on whether the input (effort) force is applied to the larger radius (the wheel) or the smaller radius (the axle). Match each specific component of the following real-world mechanisms to its exact mechanical role.
- The thick, rubberized handle of a manual screwdriver being turned by a technician.Functions as the 'Wheel' receiving the input effort force
- The narrow metal shaft of a screwdriver turning a stubborn screw.Functions as the 'Axle' delivering the output load force
- The small rear sprocket of a motorcycle being driven by the engine chain.Functions as the 'Axle' receiving the input effort force
- The large outer rubber tire of a motorcycle spinning against the asphalt.Functions as the 'Wheel' delivering output speed and distance
Cevap
Screwdriver handle matches to 'Wheel receiving input effort'; Screwdriver shaft matches to 'Axle delivering output load'; Motorcycle sprocket matches to 'Axle receiving input effort'; Motorcycle tire matches to 'Wheel delivering output speed/distance'.
Mechanical advantage in a wheel and axle depends entirely on where the input force is applied. In a screwdriver, applying force to the larger radius (the handle/wheel) multiplies the torque delivered by the smaller radius (the shaft/axle) to drive a screw. Conversely, on a motorcycle, the engine applies high force to the small radius (the sprocket/axle), which turns the larger radius (the tire/wheel). This configuration requires more effort but results in the tire's outer edge traveling a much greater distance at high speed.
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Anahtar Kavram
A wheel and axle can either act as a force multiplier (when effort is applied to the wheel) or a speed and distance multiplier (when effort is applied to the axle).
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