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The following belong to which class of lever?
A see-saw
Concept: undefined >> undefined
The following belong to which class of lever?
An oar of a boat
Concept: undefined >> undefined
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The following belong to which class of lever?
Human-arm
Concept: undefined >> undefined
The following belong to which class of lever?
Pliers Tools
Concept: undefined >> undefined
The following belong to which class of lever?
A claw-hammer
Concept: undefined >> undefined
The following belong to which class of lever?
Rowing of a boat
Concept: undefined >> undefined
The following belong to which class of lever?
A fire tongs
Concept: undefined >> undefined
The following belong to which class of lever?
Sugar tongs
Concept: undefined >> undefined
The following belong to which class of lever?
A pair of scissors
Concept: undefined >> undefined
The following belong to which class of lever?
Wheelbarrow
Concept: undefined >> undefined
The following belong to which class of lever?
Nutcracker
Concept: undefined >> undefined
The following belong to which class of lever?
Knife
Concept: undefined >> undefined
The following belong to which class of lever?
Fore-arm
Concept: undefined >> undefined
Shears, used for cutting metals and scissors used for cutting clothes are both examples of levers of the first order. However, whereas the shears always have short blades and long handles, the scissors often have blades much longer than the handles. Explain, why this is so?
Concept: undefined >> undefined
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
Concept: undefined >> undefined
Draw a labelled sketch of a second class lever. Give one example of such a lever.
Concept: undefined >> undefined
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.
Concept: undefined >> undefined
In the following diagram of a wheelbarrow, 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 the same class of lever.
Concept: undefined >> undefined
When we want to use a machine as a force multiplier, which class of lever should we preferably use? Give a simple diagram of such a lever.
Concept: undefined >> undefined
The diagram below shows a lever in use.
(i) To which class of lever does it belong?
(ii) If FA = 40 cm, AB = 60 cm, then find the mechanical advantage of the lever.
Concept: undefined >> undefined
