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Answer the following questions: A perso...

Answer the following questions:
A person alighting from a moving train is likely to fall in the direction of motion of the train. Explain why.

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  1. Answer the following questions: If brakes are suddenly applied to a ...

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  2. Answer the following question : Why does it happen ? If a stationary...

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  3. Answer the following questions: A person alighting from a moving trai...

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  4. Define pressure.

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  5. Why does a knife have a sharp edge and a needle has a sharp tip ?

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  6. State the formula for pressure. Hence, determine the unit of pressure.

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  7. State the CGS unit of pressure. State the relation between the SI and ...

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  8. State the factors on which pressure depends.

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  9. Explain with a suitable example that pressure varies inversely as the ...

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  10. With neat diagram, describe an experiment to show that pressure increa...

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  11. State the unit for pressure used in atmospheric science. How is it rel...

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  12. Why do the blades of a pair of scissors have edges ?

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  13. Why does a needle have a sharp point ?

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  14. Why do school bags have broad shoulder traps ?

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  15. How will the pressure change if the area is doubled keeping the force ...

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  16. Write proper word in the blank space : Keeping the surface area cons...

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  17. Why do the load carrying heavy vehicles have large number of wheels ?

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  18. State the characteristics of the pressure due to a liquid (or a fluid ...

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  19. Write the short note on the pressure due to a liquid (a liquid in gene...

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  20. Why is the wall of a dam made stronger and thicker at the base than at...

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