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प्रश्न
Which machine will you use to do the following work? Write their type.
To cut vegetables.
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उत्तर
To cut vegetables, we should use a knife.
Type: Wedge (simple machine)
संबंधित प्रश्न
What care would you take to increase the life span of a machine which you use?
Answer the following.
What do you understand by a complex machine?
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
Write the relation between mechanical advantage, velocity ratio and efficiency.
Can a machine be 100% efficient?
Define Simple machine
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
A uniform metre scale is kept in equilibrium when supported at the 60 cm mark and a mass M is suspended from the 90 cm mark as shown in the figure. State with reasons, whether the weight of the scale is greater than, less than or equal to the weight of mass M.
What is a lever?
Why is this so traveller’s bags have wheels?
