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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
An axe
उत्तर
An axe – An inclined plane
संबंधित प्रश्न
Select the correct alternative:
For an ideal machine, the efficiency is
What is the purpose of a jack in lifting a car by it?
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.
Write an expression for the mechanical advantage of an inclined plane in terms of its length I and vertical height h.
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
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
What is a lever? How are the orders of the lever determined?
Name the levers mentioned in the following passage. Identify the fulcrum, load, and effort of each and say which type of lever it is.
Ravi and Savita sit on a seesaw in a garden. In the meantime, a gardener is trimming trees in the garden. He puts the leaves and other garbage in the wheelbarrow. Later, Ravi gets thirsty and he buys lemon sherbet. The sherbet seller cuts the lemon and squeezes it using a lemon squeezer. He puts small pieces of ice in the glass with the help of the tongs.
______ help us to make work easier.
Simple machines makes work easier by trading ______ for force.
