The three types of lever are distinguished by the relative positions of the fulcrum, load, and effort arms.
# 1st order levers have the fulcrum between the load and effort arms. The mechanical advantage of these levers can be greater or less than 1, depending on the length of the arms.
# 2nd order levers have the load portion between the effort portion and the fulcrum. These always have a mechanical advantage greater than 1. They increase the force exerted at the expense of distance.
# 3rd order levers have the effort portion between the load portion and the fulcrum. These always have a mechanical advantage less than 1. They decrease the force exerted with a gain to the distance. All three types conserve the amount of work done.
The position of the load, fulcrum, and effort are in different spots. In a first class lever, the fulcrum is between the load and effort. In a second class lever, the load is between the force and fulcrum. And a in a third class lever, the force is in between the fulcrum and load.
They simply differ by the positions of the load and the fulcrum relative to the pivot.
CLASS ONE: fulcrum is in between load and effort.
CLASS TWO: load is in between fulcrum and effort.
CLASS THREE: effort is in between load and fulcrum.
1) In second-class levers, the effort arm is always longer than the load
arm. In third-class levers, the efform arm is always shorter than the load arm.
2) In second class levers, the distance traveled is always greater than the load distance traveled. In third-class levers the distanced traveled is always shorter than the load distance traveled.
3) In second-class levers, the effort force is always less than the load force. In third-class levers, the effort force is always greater than the load force.
A Second Class lever has the load in the middle, between the effort and
the fulcrum, so its Mechanical Advantage is always greater than ' 1 '.
A Third Class lever has the effort in the middle, between the load and
the fulcrum, so its Mechanical Advantage is always less than ' 1 '.
yes a pair of chopsticks is a first class lever...suck it ben
am
no, they would be a first class lever.yes, it is
thanks
A First Class lever is one in which the fulcrum is locatedbetween the effort and the load.A Second Class lever is one in which the load is locatedbetween the fulcrum and the effort.A Third Class lever is one in which the effort is locatedbetween the fulcrum and the load.
first class lever second class lever third class lever
In a first class lever the fulcrum is at the middle. load and effort are applied at two ends. eg scissors. In second class lever fulcrum is at one end and effort is at other end. The load is at the middle. eg nutcracker.
no,its second class lever for sure....
yes a pair of chopsticks is a first class lever...suck it ben
am
no, they would be a first class lever.yes, it is
thanks
Opening a tin of paint with a spoon is an example of a simple machine called a first class lever. There are three different types of levers, which are first class, second class, and third class levers.
In a first class lever the fulcrum is at the middle. load and effort are applied at two ends. eg scissors. In second class lever fulcrum is at one end and effort is at other end. The load is at the middle. eg nutcracker.
A First Class lever is one in which the fulcrum is locatedbetween the effort and the load.A Second Class lever is one in which the load is locatedbetween the fulcrum and the effort.A Third Class lever is one in which the effort is locatedbetween the fulcrum and the load.
* * * yes it is a second class...
a second class lever