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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A staircase
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उत्तर
A staircase – An inclined plane
संबंधित प्रश्न
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
What do you understand by a simple machine?
show a nut cracker In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E .
Define Velocity Ratio
Give an example of the following use of a machine to obtain gain in force.
Establish a relationship between efficiency, M.A., and V.R.
A cook used a ‘fire tong pair’ of length 32 cm. to lift a piece of burning coal of mass 500 g. If he applies his effort at a distance of 8 cm from the fulcrum, what is his effort? Assume friction etc. to be absent. Also, obtain values of the M.A. and the V.R. of this ‘machine’.
Which machine will you use to do the following work? Write their type.
To lift bricks to the top of a tall building.
A pair of scissors is a _____ multiplier.
