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प्रश्न
Which machine will you use to do the following work? Write their type.
To hold a papad for roasting it.
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उत्तर
To hold a papad for roasting, we should use a pair of tongs, which is a third-order lever.
संबंधित प्रश्न
Write an expression for the mechanical advantage of an inclined plane in terms of its length I and vertical height h.
Define Mechanical advantage
Establish a relationship between efficiency, M.A., and V.R.
Classify the following as a lever, a pulley and an inclined plane:
A needle
Classify the following as a lever, a pulley and an inclined plane:
An opener
Classify the following as a lever, a pulley and an inclined plane:
A crane
Classify the following as a lever, a pulley and an inclined plane:
A knife
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
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.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
