Difference between 1 st 2 nd and 3 rd class levers

MooMooMath and Science · ⏱ 1:52 · 275.9K مشاهدة · 6 years ago

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Welcome to Moo Moo Math and Science and types of levers. lever is simple machine and they're basis of many tools in and around your house and work. The way levers work is that force is applied at point and this moves load at another point through balance point called the fulcrum. It's the position of these three points, the force, the load and the fulcrum, that distinguishes the type or class of lever. There are three classes of levers. First, second and third class. With first class lever, the fulcrum is in the middle and the force is on one side and the load is on the opposite side, much like this seesaw. Other examples include scissors. Here's the force, here's the fulcrum and the load. And also pliers. Second class levers have the load between the force and the fulcrum. For example, with this wheelbarrow, here's the fulcrum, here's the force and then here's the load. nutcracker is an example. And also stapler. third class lever has the fulcrum on one end, the force in the middle and the load at the end. For example, with this hockey stick. This rake is third class lever. And also hammer. So there we go, three types of levers. Thanks for watching and Moo Moo Math uploads new math and science video every day. Please subscribe and share.