13.7 Inclined 平板飞机
Section outline
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The highway above switches back and forth as it climbs up the steep hillside. The much gentler slope of the road makes it easier for vehicles to reach the top of the mountain. The highway is an example of an inclined plane.
::公路向上开关,它爬上陡峭的山坡,路坡更温和,使车辆更容易到达山顶,公路就是倾斜式飞机的一个例子。What Is An Inclined Plane?
::什么是"入侵者平面"?An inclined plane is a simple that consists of a sloping surface connecting a lower elevation to a higher elevation. An inclined plane is one of six types of simple machines, and it is one of the oldest and most basic. In fact, two other simple machines, the and the , are variations of the inclined plane.
::倾斜的平面是一个简单的图案,它由连接低海拔至高海拔的斜面组成。 倾斜的平面是六种简单机器之一,也是最古老和最基本的机器之一。 事实上,另外两台简单的机器,即两台和两台,是倾斜平面的变形。A ramp like the one in the Figure is another example of an inclined plane. Inclined planes make it easier to move objects to a higher elevation. The sloping surface of the inclined plane supports part of the of the object as it moves up the slope. As a result, it takes less force to move the object uphill. The trade-off is that the object must be moved over a greater than if it were moved straight up to the higher elevation.
::图中的斜坡是倾斜平面的另一个例子。 嵌入式平面使得将物体移动到更高高度更容易。 倾斜平面倾斜的表面支持着物体向上斜坡的部分物体。 因此, 将物体向上坡移动的力度较小。 权衡的结果是, 该物体必须移动的幅度大于直移到较高高度的物体。Mechanical Advantage Of An Inclined Plane
::投资型飞机的机械优势The of a simple machine is the factor by which it multiplies the force applied to the machine. It is the ratio of output force (the force put out by the machined) to input force (the force put into the machine). For an inclined plane, less force is put into moving an object up the slope than if the object were lifted straight up, so the mechanical advantage is greater than 1. The more gradual the slope of the inclined plane, the less input force is needed and the greater the mechanical advantage.
::简单的机器是它乘以机器所应用的力的因素。它是输出力(机器所推出的力量)与输入力(机器所投入的力量)的比率(机器所投入的力量)。对于倾斜的平面来说,将物体向斜坡移动的力量比物体直升起来的要小,因此机械优势大于1。 倾斜平面的斜坡越慢,所需的输入力就越少,机械优势就越大。Q : Which inclined plane pictured in the Figure has a greater mechanical advantage?
::问题:图中描绘的哪个倾斜平面具有更大的机械优势?A : The inclined plane on the right has a more gradual slope, so it has a greater mechanical advantage. Less force is needed to move objects up the gentler slope, yet the objects attain the same elevation as they would if more force were used to push them up the steeper slope.
::A:右侧的倾斜平面具有较渐进的斜坡,因此它具有更大的机械优势。 向较温和的斜坡移动物体需要的力较少,但物体达到的高度却与用更多力将物体推上较陡坡时的高度相同。Getting a piano into a truck isn't easy, so we often use a ramp to lower the amount of required force. Although the force is smaller, the distance we have to apply the force is greater. So in a way, we exchange force for distance. However, the total amount of work done remains the same. Play around with the Ramp and Piano Simulation below to learn more:
::把钢琴送进卡车并不容易,所以我们经常使用斜坡来降低所需武力的数量。虽然部队规模较小,但我们必须使用部队的距离要大一些。因此,在某种程度上,我们用部队换距离。然而,完成的工程总量仍然不变。在下面玩Ramp和钢琴模拟游戏,学习更多:Summary
::摘要-
An inclined plane is a simple machine that consists of a sloping surface connecting a lower elevation to a higher elevation. It is used to move objects more easily to the higher elevation.
::倾斜平面是一种简单的机器,由连接低海拔至高海拔的倾斜表面组成,用于更容易地将物体移动到高海拔。 -
Less force is needed to move an object uphill with an inclined plane, but the force must be applied over a greater distance.
::用倾斜飞机向上移动物体需要的力少一些,但必须用更远的距离使用这种力。 -
The mechanical advantage of an inclined plane is always greater than 1, because the machine puts out more force than the user puts into it.
::倾斜平面的机械优势总是大于1,因为机器所释放的力量比用户所注入的力量要大。
Review
::回顾-
What is an inclined plane?
::什么是倾斜飞机? -
How does an inclined plane make work easier? How does it change the force that is applied to the inclined plane?
::倾斜式飞机如何使工作更加容易?它如何改变适用于倾斜式飞机的力量? -
Why is the mechanical advantage of an inclined plane greater than 1?
::为什么倾斜平面的机械优势大于1?
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An inclined plane is a simple machine that consists of a sloping surface connecting a lower elevation to a higher elevation. It is used to move objects more easily to the higher elevation.
