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When does a machine act as (a) a force m...

When does a machine act as (a) a force multiplier, (b) a speed multiplier. Can a machine act as a force multiplier and a speed multiplier simultaneously ?

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No, it will either be acting as a speed multiplier or a force multiplier.
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ICSE-SAMPLE PAPER 2013-SECTION-II
  1. When does a machine act as (a) a force multiplier, (b) a speed multipl...

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  2. With reference to the direction of action, how does a centripetal forc...

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  3. State the principle of conservation of energy.

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  4. Name the form of energy which a body may possess even when it is not i...

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  5. A coolie is pushing a box weighing 1500 N up an inclined plane 7.5 m l...

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  6. A coolie is pushing a box weighing 1500 N up an inclined plane 7.5 m l...

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  7. A coolie is pushing a box weighing 1500 N up an inclined plane 7.5 m l...

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  8. A block and tackle system of pulleys has velocity ratio 4. Draw a ne...

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  9. A block and tackle system of pulleys has a velocity ratio 4. What is...

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  10. Name the radiations : that are used for photography at night.

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  11. Name the radiations : used for detection of fracture in bones.

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  12. Name the radiations : whose wavelength range is from 100 Å to 4000 Å...

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  13. Define the term refractive index of a medium. Can it be less than 1 ?

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  15. An object AB is placed between 2F(1)andF(1) on the principal axis of a...

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  16. What is the principle on which SONAR is based ?

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  21. Explain, why stringed musical instruments, like the guitar, are provid...

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