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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A slide
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उत्तर
A slide – An inclined plane
संबंधित प्रश्न
A machine is 75% efficient’. What do you understand by this statement?
State if the following statement is true or false. Correct the statement if it is false.
There are four types of simple machines.
Define Mechanical advantage
Give an example where a machine is used to obtain gain in speed.
Define mechanical advantage (M.A.) of the machine.
Give an example of the following use of a machine to change the point of application of the force.
(i) Calculate the mechanical advantage of the lever shown in the figure.
(ii) How do you define the mechanical advantage of a machine?
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 hold a papad for roasting it.
Simple machines makes work easier by trading ______ for force.
