A door is a class - 2 lever.
A door typically functions as a first-class lever, with the hinges acting as the fulcrum, the door handle as the effort, and the door itself as the load.
A door hinge is a second-class lever because the load (the weight of the door) is between the fulcrum (the hinge) and the effort (when you push or pull the door). This arrangement allows a small effort to generate a large force to move the door.
second class lever
A trap door is considered a type of lever, specifically a class 1 lever, where the fulcrum is located at one end and the load (trap door) is positioned at the other end. When the trap door is lifted or lowered, it relies on the lever principle to move.
Second or third cant remember which.
Yes
yes
A door typically functions as a first-class lever, with the hinges acting as the fulcrum, the door handle as the effort, and the door itself as the load.
A door hinge is a second-class lever because the load (the weight of the door) is between the fulcrum (the hinge) and the effort (when you push or pull the door). This arrangement allows a small effort to generate a large force to move the door.
second class lever
A trap door is considered a type of lever, specifically a class 1 lever, where the fulcrum is located at one end and the load (trap door) is positioned at the other end. When the trap door is lifted or lowered, it relies on the lever principle to move.
It is a third class lever machine because The effort is in between the load(food) and the fulcrum(handle)
The nearer the handle is to the hinge (fulcrum) the harder it is to open the door, this is known as the lever principle and is widely known throughout physics. A door and hinge is known as a class two lever.
3rd class lever
Class 1 lever
1st class lever3rd class lever
The door knob is a lever