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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A wedge
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उत्तर
A wedge – An inclined plane
संबंधित प्रश्न
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
What do you understand by a machine?
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
Write the relation between mechanical advantage, velocity ratio and efficiency.
Define Mechanical advantage
What is the efficiency of a machine?
(i) Calculate the mechanical advantage of the lever shown in the figure.
(ii) How do you define the mechanical advantage of a machine?
Why is this so machines have to be maintained?
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.
Simple machines makes work easier by trading ______ for force.
