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प्रश्न
Name a machine to obtain gain in speed?
Give one example of a machine used to obtain gain in speed.
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उत्तर
When a pair of scissors is used to cut the cloth, its blades move longer on the cloth while its handles move a little.
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संबंधित प्रश्न
Which class of lever will always have MA > 1 and why?
Write down a relation expressing the mechanical advantage of a lever.
The lever for which the mechanical advantage is less than 1 has :
Which type of levers have mechanical advantage always more than 1? Give reasons.
The following belong to which class of lever?
Human-arm
The following belong to which class of lever?
Pliers Tools
The following belong to which class of lever?
Rowing of a boat
The following belong to which class of lever?
Knife
In the diagram shown alongside a claw hammer, mark the fulcrum (F) and indicate the directions of load (L) and effort (E) with arrows. What class of lever is it? Give one more example of this class of lever.
State the types (or kinds) of lever, and give two examples of each kind.
