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Name a machine which is used to : (a) ...

Name a machine which is used to :
(a) multiply force,
(ii) multiply speed, and
(c) change the direction of force applied.

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ICSE-SAMPLE PAPER 2011-SECTION-II
  1. Name a machine which is used to : (a) multiply force, (ii) multipl...

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  2. What do you understand by an ideal machine ? How does it differ from a...

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  3. Write a relationship between the mechanical advantage (M. A.) and velo...

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  4. A coolie carrying a load on his head and moving on a frictionless hori...

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  5. Draw a diagram to show the energy changes in an oscillating simple pen...

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  6. A uniform metre scale can be balanced at the 70.0 cm mark when a mass ...

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  7. A uniform metre scale can be balanced at the 70.0 cm mark when a mass ...

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  8. State the laws of refraction of light. State at least three examples o...

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  9. Write a relation between the angle of incidence (i), angle of emerge...

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  10. Suggest one way, in each case, by which we can detect the presence of:...

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  11. State any one use of infrared radiations.

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  12. An object is placed in front of a lens between its optical centre and ...

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  13. An object is placed in front of a lens between its optical centre and ...

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  14. Name the type of waves which are used for sound ranging.

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  15. Why are these waves mentioned in (i) above, not audible to us?

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  16. Give one use of sound ranging.

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  17. A man standing 25 m away from a wall produces a sound and receives the...

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  18. A man standing 25 m away from a wall produces a sound and receives the...

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  19. Name two safety devices which are connected to the live wire of a hous...

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  20. Give one important function of each of these two devices. i) Switch ii...

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  21. Draw a graph of Potential difference (V) versus Current (I) for an ohm...

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