== == There are 3 class levers, 1st, 2nd and 3rd. A 1st class lever is a lever with its Fulcrum in between the Effort and the Load. An example is the scissors and a roller coasters and glow sticks.....!!!!! (JUST REMEMBER FLE 123 1= fulcrum in the middle 2=Load in the middle 3=Effort)
A Class-I lever is a lever set up like a see-saw ... with the effort and
the load located at opposite ends, and the pivot between them.
Class-II and Class-III levers both have the pivot at one end.
Class-II . . . the effort is at the other end, and the load is in the middle.
Class-III . . . the load is at the other end, and the effort is in the middle.
A see saws is the easiest description of a 1st class lever. The fulcrum is in the middle and the force is applied on one side. Scissors and pliers are other 1st class levers.
Examples of first class levers are
-see saw
-trebuchet
-scissors
-spud bar
-chop sticks
a form of lever in which the input and output forces are on either side of the fulcrum
scissors ,beam balance , seesaw,oars
Archimedes is CREDITED with inventing them, but like most simple machines, these have been used the beginning of humankind, so the real inventor is unknown.
teeter toter
early 1700s
first class lever
First class lever
First Class LeverIt is a First class lever.
it is a 2nd class lever
it is a first class lever
3rd class lever
A crane is a first class lever when it is winching in or out the rope attached to a load. The crane becomes 3rd class lever when it's boom is luffing, i.e. it is being lowererd or raised.
taylor grant hosley invented the second class lever with patrick everett muir as his helpful sidekick
1st class lever3rd class lever
is a crowbar first class lever
yes a pair of chopsticks is a first class lever...suck it ben