the names of the three classes of levers

In class III levers effort is situated between the load and the fulcru..

A simple crowbar can be used to lift a heavy rock with a small effort. The crowbar is an example of a lever. The use of levers was known to the ancient Greeks, and it is reported that Archimedes once remarked "Give me a lever long enough and I will move the world" A ..

Here the power is in the middle and the weight and fulcrum on either side. For example the flexing of the elbow of forearm. Here the elbow joint acts as fulcrum, and the distal part of hand provide resistance. The contracting biceps muscles exert the effort in between fulcrum and resistan..

Force Work Power Energy and Machines..

In class III levers effort is situated between the load and the fulcrum. (shown in the figure below) ..

As a typical example the mechanism in Salvia is described. The flower has a bilipped corolla. There are two stamens and each stamen has two anther lobes which are separated from one another by a long connective. One anther lobe is fertile and the other is sterile. The insect lands on the lower lip..

Ligands are named first followed by the metal atom. The ending of the name of the metal depends on the nature of the complex ion. a) If the complex ion is a cation or non-ionic, the name of the central metal ion is written as such followed by its oxidation state, indi..

Binary compounds - Binary compounds are compounds containing only two elements. If one of the two is a metal (or ammonium), then the suffix - ide , is added to the non-metal atom. Remember : NaCl - Sodium chloride CaO - Calcium oxide AlN - Aluminium nitride If atoms of two elements form more than o..

In these type of levers the load is situated between fulcrum and effor..

In these, the fulcrum is in the centre with weight and power on either side. For example, the joint between the first vertebra (atlas) and occipital bone of skull exhibits first class lever, in which the joint is the fulcrum, contraction of back muscle in the effort and facial ..