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Physics – After SEE – LS

SIMPLE MACHINE

Dear ! This is SIMPLE MACHINE  Quiz and it contains 20 questions.

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1. Unitless quantity is

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2. M.A has unit

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3. Fore arm of man is

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4. For perfect machine (Ideal machine), efficiency work should be

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5. Velocity ratio of single moveable pulley is

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6. Which of the following is correct by simple machine?

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7. Nut-cracker is an example of

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8. V.R. is

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9. Classes of lever is

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10. If M.A. of simple machine is 2 and V.R. is 5, then its efficiency work is

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11. Unit of moment of force is

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12. Scissors are an example of

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13. Beam balance is an example of

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14. Lemon squeezer is

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15. Fishing rod is an example of

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16. Screw driver is an example of

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17. If 20 N force is applied on a body at distance of 5cm from the pivot, then find its moment of force.

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18. Efficiency work of simple machine is 75%

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19. Which of the following is called continuous lever?

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20. For second class lever,

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