Advertisements
Advertisements
प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A needle
Advertisements
उत्तर
A needle – An inclined plane
संबंधित प्रश्न
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
The diagram below shows a wheel barrow. Mark position of fulcrum F and draw arrows to show the directions of load L and effort E. What class of lever is the whell barrow? Give one more example of the same class of lever.
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
Define Efficiency
Give an example where a machine is used to obtain gain in speed.
Establish a relationship between efficiency, M.A., and V.R.
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
Classify the following as a lever, a pulley and an inclined plane:
Scissors
Simple machines makes work easier by trading ______ for force.
