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Classify the following into levers as cl...

Classify the following into levers as class I, class II or class III:
(a) a door
(b) a catapult
(c) claw hammer
(d) a wheel barrow
(e) a fishing rod.
(f) sugar tongs.

Text Solution

Verified by Experts

The correct Answer is:
(a) class II,
(b) class I,
(c) class I,
(d) class II,
(e) class III,
(f) class III.
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ICSE-MACHINES-EXERCISE-3(A)
  1. Both a pair of scissors and a pair of pliers belong to the same class ...

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  2. Explain why scissors for cutting cloth may have blades longer than the...

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  3. Figure, shows a uniform metre rule of weight W supported on a fulcrum ...

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  4. Which typ eof lever has mechanical advantage always more than 1 ? Give...

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  5. Draw a diagram of a lever which is always used as a force multiplier. ...

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  6. Explain why mechanical advantage of a class II lever is always more th...

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  7. Draw a labelled diagram of a class II lever. Give one example of such ...

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  8. Figure, shows a lemon crushes, (a) In the diagram, mark the position...

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  9. The diagram below shows a rod lifting a stone. (a) Mark position of ...

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  10. State the kind of lever which always has mechanical advantage less tha...

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  11. Explain why mechanical advantage of class III lever is always less tha...

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  12. Class III levers have mechanical advantage less than 1. why are they t...

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  13. Draw a labelled sketch of a class III lever. Give one example of this ...

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  14. State the class of levers and the relative positions of load (L), effo...

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  15. Draw diagrams to illustrate the positions of fulcrum, load and effort,...

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  16. Classify the following into levers as class I, class II or class III: ...

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  17. What type of lever is formed by a human body while (a) raising a load ...

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  18. Indicate the positions of load L, effort E and fulcrum F in the forear...

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  19. Give an example of each class of lever in a human body.

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  20. Complete the following sentence: (a) Mechanical advantage=xxvelocity...

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