A key is an example of a class 1 lever, where the fulcrum is located between the effort (hand) and the load (lock mechanism). This means that the force applied to the key has the ability to exert a greater force on the lock mechanism.
An axe is a type of lever known as a class 1 lever. In a class 1 lever, the fulcrum is located between the effort (in this case, your hand on the handle) and the load (the wood being chopped).
No, a lock and key is not a first-class lever. A first-class lever has the fulcrum situated between the effort force and the load, like a see-saw. In the case of a lock and key, it is typically a mechanism that involves rotation or sliding to secure or unlock something.
No, a nail cutter is not a first-class lever. It is a type of lever called a third-class lever because the effort force is between the fulcrum and the load.
First Class LeverIt is a First class lever.
A hairbrush is a third-class lever, where the force is applied between the fulcrum (pivot point) and the load (hair being brushed).
1st class lever3rd class lever
lock and key is the lever of second type
The third class lever is the most common lever in the body.
A see-saw is a fulcrum type of lever.
A dustpan is a 2nd class lever
3rd Class Lever
first class lever
3rd Class Lever
First class lever.Fulcrum is between load and force.Sources: http://en.wikipedia.org/wiki/Lever#First-class_levers
A thrid-class lever
An axe is a type of lever known as a class 1 lever. In a class 1 lever, the fulcrum is located between the effort (in this case, your hand on the handle) and the load (the wood being chopped).
No, a lock and key is not a first-class lever. A first-class lever has the fulcrum situated between the effort force and the load, like a see-saw. In the case of a lock and key, it is typically a mechanism that involves rotation or sliding to secure or unlock something.