yes the knife is a lever but i am not sure whether it is first class or third class lever.
They are both compound 3rd Class levers. The fulcrum is the bit which is stuck together, the Effort is where you press them to make them work, so in the middle, and the load is at the end of the tweezers/nail clippers where you make the magic happen :)
Nail clippers work by cutting your nails between two very sharp metal edges. These edges come together and slice through your nail.
A standard office stapler is a third class lever. A third class lever is characterized by having a fulcrum on one end and the output on the opposite end of the machine. Effort is applied between the fulcrum and the output.
You are using a lever when you pull a nail with a hammer or bar.
A nail clipper is a class two lever coupled to a class three lever.
A nail clipper is a class two lever coupled to a class three lever.
A nail clipper is a class two lever coupled to a class three lever.
A wedge and class 3 lever
first class The point about which a lever rotates is called the fulcrum
the handle is the effort. The pincher which takes off the nail is the load. Then the pivot comes last.
To cut your toenails and fingernails. To clip and file your nails.
The lever class of a hammer depends upon its use. If the hammer is used as a claw to remove a nail, it is a first class lever. When the hammer is used to strike a nail, it is a third class lever. There are three classes of levers. The difference between the classes lies in the position of the load, the effort and the fulcrum. When the fulcrum is between the load and effort, the object is a first class lever. If the load is between the fulcrum and effort, the object is a second class lever. A third class lever places the effort between the load and the fulcrum.
second class
yes the knife is a lever but i am not sure whether it is first class or third class lever.
A hammer is a 3rd class lever. A third class lever has a load-effort-fulcrum configuration. What is interesting about a hammer is that though the load is the head of the hammer, the effort and the fulcrum are both in the hand. What makes it a 3rd class lever is that the effort is more in the hand and fingers, while the fulcrum is closer to the base of the hand at the wrist.
It uses both third class and second class level., because, the part which is cutting the nail, is the third class. But the part where you're putting the finger and pushing, that becomes second class lever.