Indicate the positions of load L, effort E and fulcrum F in the forearm shown alongsind in figure. Name the class of leverl.
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State the class of levers and the relative positions of load (L), effort (E) and fulcrum (F) in each of the following cases. (1) A bottle opener (2) Sugar tongs.

Figure, shows a lemon crushes, (a) In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E. (b) Name the class of lever.

State the class of levers and the relative positions of load (L), effort (E) and fulcrum (F) in (a) a bottle opener, and (b0 sugar tongs.

Draw a simple diagram ofa fire tongs and mark on it the fulcrum F and the points of application of load L and effort E. (a) Name the class of lever. (b) if load arm is 15 cm and effort arm is 5 cm. what is its mechanical adavantage?

The diagram below shows a rod lifting a stone. (a) Mark position of fulcrum F and draw arrows to show the directions of load L and effort E. (b) What class of lever is the rod ? (c) Give one more example of the same class of lever stated in part (b). .

The diagram alongside shows an arrangement of three pulleys A,B and C. the load is marked as L and the effort as E. (a) Name the pulleys A,B and C. (b) Mark in the diagram the directions of load (L), effort (E) and tension T_1 and T_(2) in the two strings. (c) How are the magnitudes of L and E related to the tension T_(1) ? (d) Calculate mechanical advantage and velocity ratio of the arrangement. (e) What assumptions have you made in parts (c) and (d) ?

Put the relevant labels - load, fulcrum , and effort on each figure.

Magnitude of slope i.e. steepness of graph shown in figure l

You are given four pulleys and three strings. Draw a neat and labelled diagram to use them so as to obtain a maximum mechanical advantage equal to 8. In your diagram mark the directions of load L, effort E and tension in each strand. What assumptions have you made to Obtain the required mechanical advantage ?

In Figure, draw a tackle to lift the load by applying the force in downward direction. (a) Mark in the diagram the direction of load L and effort E. (b) If the load is raised by 1 m, through what distance will the effot move ? (c) State the number of strands of tackle supporting the load. (d) What is the mechanical advantage of the system?