- 作用力计算器 helps you find the amount of force needed to move a load using simple machines like levers, pulleys, and inclined planes. It belongs to the Physics / Mechanical Engineering Calculator 类别。
In real life, machines help us do 工作 more easily. When you're using a lever or a pulley, you're applying effort to move something heavy. The effort force is the amount of push or pull you need to apply. This calculator saves 次 by giving you that answer instantly, especially when working on science problems or engineering designs.
The tool is useful for:
- 物理系学生
- Engineers and mechanics
- 老师们正在备课
- Technicians designing tools
It simplifies complex equations by automating the math, ensuring accurate and fast results.
formula of Effort Force Calculator
Effort Force (FE) = (Load Force (FL) * Load Distance (DL)) / (Effort Distance (DE) * Mechanical Advantage (MA))
地点：
- FE = Effort Force (in newtons or pounds)
- FL = Load Force (weight of the object in newtons or pounds)
- DL = Distance from the load to the pivot point (in meters or feet)
- DE = Distance from the effort to the pivot (in meters or feet)
- MA = Mechanical Advantage (a number without units)
This formula shows how effort force depends on the machine's design. The higher the mechanical advantage or the longer the effort arm, the less force you need to apply.
一般术语和参考表
| 按揭年数 | 描述 | Typical Range or Example |
|---|---|---|
| Load Force (FL) | Weight of the object being lifted or moved | 50 N, 100 lbs |
| Load Distance (DL) | Distance from the load to the pivot or fulcrum | 0.5 米，2 英尺 |
| Effort Distance (DE) | Distance from the effort point to the pivot | 1 米，4 英尺 |
| 机械优势 (MA) | Ratio that shows how much a machine multiplies your force | 1.5，2，3 |
| Effort Force (FE) | The force you apply to move the load | Result from calculator |
| 单位换算 | 1 meter = 3.281 feet, 1 newton ≈ 0.2248 pounds |
This table helps users understand commonly used terms and values. It also avoids the need for separate calculations when switching between metric and imperial units.
Example of Effort Force Calculator
场景：
You’re using a lever to lift a heavy box. Here are your values:
- Load Force (FL) = 200 N
- Load Distance (DL) = 0.5 m
- Effort Distance (DE) = 1.5 m
- Mechanical Advantage (MA) = 2
逐步计算：
Effort Force (FE) = (200 × 0.5) / (1.5 × 2)
Effort Force (FE) = 100 / 3 = 33.33Ň
结果：
你需要申请 33.33牛顿 of force to lift the load using this lever. That’s much easier than applying the full 200 newtons directly.
最常见的常见问题解答
Effort force is the amount of push or pull you apply to move a load using a machine. It’s usually less than the load force, thanks to mechanical advantage.
Mechanical advantage (MA) shows how a machine multiplies your effort. A higher MA means you need less force to move the load.
Yes. As long as you know the mechanical advantage and distances, this calculator can work for levers, pulleys, ramps, and other simple machines.