What+is+a+lever?+Part+2

** What in the world are levers ? ** By, Chandler C 2011

=** What is a lever **= =A lever is one of the seven simple machines that help you lift and transport objects much easier. There are many levers you use every day, think every time you pick something up your arm is a lever. When you cut something with scissors the scissors are a lever. It is used when you work in the garden, the sheers that you trim trees with. Or the wheel barrow that helps you transport plants and gardening tools from place to place in your garden.= =Going to this website will give you a real live lever: (see third page)= []

= = =** The First Class Lever: what are they **=

=The first class is where the fulcrum is in the middle and the force and the load are on opposites of the fulcrum. Some types of first class levers are a seesaw, a crowbar, some scissors, and shears.=

= = =** The Second Class Lever: What are they **=

The second class is where the fulcrum is at a side the load is in the middle and the effort is on the opposite side of the fulcrum. Some types of class 2 levers are the wheelbarrow, or a nutcracker.



= = =** The Third Class Lever: What are they **=

A third class is where the fulcrum is on the end and the effort is pushing up in the middle and the load is on the opposite side of the fulcrum. Some types of third class levers are your arm, tweezers, a catapult, and a broom.

=Lets see what we have learned about a levers. In the pictures below can you tell which one is a lever?=

Answer: Class 2 Lever