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Explain the Why are flat and long skie...

Explain the
Why are flat and long skies used for gliding over snow?

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ICSE-FORCE AND PRESSURE -EXERCISE 3.1 (STUDY QUESTIONS)
  1. State turning effect of force with example from daily life.

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  2. Define moment of force and its unit.

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  3. Define the term pressure.

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  4. State and define the SI unit of pressure.

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  5. Explain the Why are double tyres provided at the rear wheels of a tr...

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  6. Explain the Why can a camel easily cross the desert but not a horse?

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  7. Explain the Why are flat and long skies used for gliding over snow?

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  8. Explain the Why is the foundation of a building made very wide, as c...

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  9. Explain the Why do the army tanks move over the wide steel chain rat...

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  10. Explain Why is the edge of knife kept sharp?

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  11. Explain the Why is one end of drawing board pin broad and flat, wher...

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  12. Explain the Why does a sharp nail easily penetrate wood, but not a b...

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  13. A force of 16 N acts on an area of 50 cm What is the magnitude of pres...

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  14. A force of 200 N acts on an area of 0.16 m^(2) What is the magnitude ...

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  15. What is the magnitude of a force which produces a pressure of 7000 Pa ...

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  16. A force F acts on an area of 600 cm^(2) and produces a pressure of 12...

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  17. A force of 300 N, while acting on an area A, produces a pressure of 15...

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  18. What is the area of cross-section of a body in m^(2), when it exerts a...

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