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Let a marble roll on the following surfa...

Let a marble roll on the following surfaces.Arrange the choice of the material such that a marble moving over it covers a greater distance. Cotton cloth, glass plate, paper, card board, silver plate

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SURA PUBLICATION-Force and Pressure-Example
  1. Viscosity depends on the prends on the pressure of a liquid.

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  2. Rolling friction, static friction, sliding fricition.

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  3. Let a marble roll on the following surfaces.Arrange the choice of the ...

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  4. Knot in a theread: friction:: ball bearing: friction

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  5. Downward force: weight:: Upward force offered by liquid:

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  6. A stone weighs 500 N.Calculate the pressure exerted by it if it marke...

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  7. In a hydraulic life, the surface area of the input piston is 10cm^. Th...

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  8. ASSERTION&REASON: Mark the correct choice as: Assertion: Sharp knives ...

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  9. ASSERTION&REASON: Mark the correct choice as: Assertion: Broad straps ...

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  10. ASSERTION&REASON: Mark the correct choice as: Assertion : Water stride...

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  11. Give two example to verify that a force tends to change the shape of a...

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  12. Give two example to verify that a force tends to change the static con...

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  13. What do you feel when you thouch a nail immediately after it is hammer...

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  14. How does the friction arise between the surfaces of two bodies in rela...

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  15. Name two instrument, which help to measure the pressure of a Huid.

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  16. Define one atmosphere.

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  17. Why are heavy bags provided with broad straps?

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  18. How does surface help a plant?

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  19. Which has greater viscosity,oil or honey? Why?

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  20. Define friction.Give two exemples of the utility of friction In day to...

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