Q:
Is a shovel a second-class lever?
A:
Quick Answer
No, the shovel is a third-class lever. In such systems, the effort is positioned between the fulcrum and the load. Mechanics of using a shovel involve holding one end steady with a hand, making the fulcrum, while the other hand applies force, or effort, to pull up the load.
Continue Reading
Credit:
Kelly Sikkema
CC-BY-2.0
Full Answer
In second-class lever systems, the load is positioned between the fulcrum and the effort. A wheelbarrow is a second-class lever: the wheel acts as a fulcrum, the load is placed inside the cart and effort is applied on the handles. A nutcracker is another example of a second-class lever. The human forearm is an example of a third-class lever.
Learn more about Motion & MechanicsSources:
Related Questions
-
Q:
The fixed point on which a lever moves is called?
A: The fixed point on which a lever moves is called the fulcrum. A lever is a simple machine with three parts: effort, load and the fulcrum. The lever would b... Full Answer >Filed Under: -
Q:
Which is not a simple machine: block and tackle, wedge, lever, or wheel and axle?
A: A wedge, a lever, and a wheel and axle are types of simple machines, but a block and tackle is a complex machine because it is a combination of simple mach... Full Answer >Filed Under: -
Q:
What simple machines make up a pair of scissors?
A: Scissors are composed of two different types of simple machines: wedge and lever. The scissors' blades are sharpened into wedges, and the arms that are squ... Full Answer >Filed Under: -
Q:
What is a example of a lever?
A: An common example of a lever is a see-saw. Some other levers are pliers, crowbars, wheelbarrows, scissors, staplers, fishing rods, tweezers, nut crackers a... Full Answer >Filed Under:
