Examples of Second Lever

Second class lever or second lever plays an important role in the different fields like in material sciences and designing etc. It has its applications in the hardware from basic to complex. The second lever is used to increase the capability of basic machines and enable them to do other tasks. In this article we will discuss the real-life examples of the second lever and explore them in detail.

What is Second Lever?

Second class levers are those in which the load is placed at the center, the effort is applied at one end and the fulcrum is placed at the other end. As a result, the load can be lifted easily. The second lever is an important part of our daily use machines like staplers, hand carts, etc.

What are Examples of Second Lever?

The second lever is commonly used component in different machines that is very useful in our real lives. Some real-life examples of the second lever are listed below:

• Nutcracker
• Work cart
• Bottle Opener
• Stapler
• Crowbar

Nutcracker

One of the common examples of the Second Lever is a nutcracker. In this arrangement, the pivot acts as the support, the nut is set between the heap and the support, and the work is applied at the opposite end of the switch. As the work is applied, the heap (nut) is compacted, and power is applied to separate the nutshell. This instrument provides the continuous mechanical benefit to switch that removes the hard shells with negligible effort.

Work Cart

One more common examples of the Second Lever is in a handcart. The wheel acts as the support, the heap (weights taken) is put between the support and where the controller holds the handles, and the work is applied at the handles. By using the switch an individual can lift and transport heavy weights with less efforts. The longer length of handle of the work cart gives a mechanical benefit resulting the controller to apply less power to lift the heap.

Bottle Opener

The bottle opener is also one of the real-life examples of second lever. In this situation, the support is situated at the edge of the jug cap, the actual cap acts as the heap, and the work is applied at the opposite end of the switch. The container opener uses the rule of the second switch to remove the cap when a force is applied resulting in the mechanical benefit acquired by proper hold.

Stapler

The stapler also is an example of second lever as we apply force by pushing down on the highest point of the stapler to push the staple through the paper. The fulcrum of the stapler is the position where staple bends and the paper acts as the load.

Door

Door is also one of the example of second lever. The door itself is the weight; the hinges serve as the fulcrum; and the door handle or knob is the point of effort.

Crowbar

Crowbar is an example which is based on 2nd lever. The object being lifted or moved acts the load and we position the end that is below the object and apply the effort at the other end which provides the mechanical benefit with less effort.

Real-Life Experiments using Second Lever

Some of the real-life experiments based on 2nd lever are listed below.

Teeter-Totter Experiment

In this experiment we will arrange things with varying weights using teeter-totter at various separations from the center. This will enable us to understand how adjustments in the position of weight and level of effort results in the teeter-totter’s equilibrium. By performing this experiment, we can observe that force, distance, and equilibrium in lever systems are connected.

Crowbar Experiment

In this experiment we will lift heavy things with a crowbar. We observe that how the length of the crowbar effects the force required to raise the object by positioning the support below it and using the force at the far end of the crowbar. This experiment demonstrates the mechanical benefit of a longer lever.

Constructing a Basic Scale

In this experiment we will build a simple scale with a wooden board or ruler, a support, and several objects for weights. By varying the weights and the support position, we can see how modifications to the lever system effects stability and balance.

FAQs on Applications of Second Lever

What is a lever?

A lever is a simple machine consisting of a rigid bar or beam that rotates around a fixed point called a fulcrum.

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What is the mechanical benefit of a second lever?

The mechanical benefit of a second lever is more extended switch arm that provides an increased power.

How does the second lever vary from different kinds of switches?

In a Second Lever, the heap is arranged between the support and the work. This design is different from first and third switches, where the work and load are on inverse sides of the support.

Can a second lever be utilized in sports?

Yes, an example of a Second Lever in sports is a slugger.