Pregunta
Which is an example of a way that machines make work
easier?
They increase the time it takes to do a task.
They spread a small force over a small distance.
They spread a small force over a larger distance.
easier?
They increase the time it takes to do a task.
They spread a small force over a small distance.
They spread a small force over a larger distance.
Ask by Mccarthy Guzman. in the United States
Jan 23,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
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They spread a small force over a larger distance.
Solución
The correct example of how machines make work easier is:
They spread a small force over a larger distance.
Explanation:
Machines often utilize the principle of mechanical advantage, which allows a smaller force to accomplish the same amount of work by increasing the distance over which the force is applied. This means that while the force required is reduced, the distance the machine moves the load is increased.
For example:
- Lever: By applying a smaller force over a longer distance on one end of the lever, you can lift a heavier load on the other end.
- Pulley Systems: Multiple pulleys can reduce the effort needed to lift an object, but the rope must be pulled a greater length.
This approach makes tasks easier by requiring less effort from the user, even though the total work done remains the same.
Why the Other Options Are Incorrect:
- They increase the time it takes to do a task: Increasing the time required does not make work easier. In fact, it could make a task less efficient.
- They spread a small force over a small distance: This does not provide a mechanical advantage and doesn’t effectively reduce the effort needed.
Summary: Spreading a small force over a larger distance is a fundamental way machines make work easier by providing mechanical advantage.
Answer:
They spread a small force over a larger distance.
They spread a small force over a larger distance.
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Simplifique esta solución Bonus Knowledge
Machines are designed to multiply our efforts, allowing us to do more with less physical exertion. One great example is a lever; it allows us to lift heavy objects by applying a smaller force over a greater distance, making tasks like moving a rock or lifting a gate a breeze!
In real-life applications, think about a simple wheelbarrow. By using a wheel and lever system, you can transport heavy loads with less effort. Instead of lifting the entire weight manually, the wheel carries most of the load, demonstrating how machines revolutionize our ability to perform heavy tasks efficiently.
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