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Science

Pressure

Grade 8 · Middle School

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  1. Question 1 of 20Easy

    Pressure is defined as ...

  2. Question 2 of 20Easy

    The SI unit of pressure is the ...

  3. Question 3 of 20Easy

    A knife is made sharp with a small surface area so that ...

  4. Question 4 of 20Easy

    The hydrostatic pressure of a liquid depends on ...

  5. Question 5 of 20Easy

    Archimedes' principle states that an object immersed in a liquid experiences a buoyant force equal to ...

  6. Question 6 of 20Easy

    The instrument used to measure air pressure is a ...

  7. Question 7 of 20Medium

    A force of 100 N acts on an area of 0.5 m^2. The pressure produced is ...

  8. Question 8 of 20Medium

    The hydrostatic pressure at a depth of 2 m in water (rho = 1,000 kg/m^3, g = 10 m/s^2) is ...

  9. Question 9 of 20Medium

    A wooden block floats on water because ...

  10. Question 10 of 20Medium

    Pascal's principle is applied in ...

  11. Question 11 of 20Medium

    The higher a place is above sea level, its air pressure ...

  12. Question 12 of 20Medium

    The tip of a needle is made sharp so that ...

  13. Question 13 of 20Medium

    In a hydraulic jack, a 10 cm^2 piston is given 20 N of force. If the large piston is 100 cm^2, the lifting force is ...

  14. Question 14 of 20Medium

    A steel ship can float on the sea because ...

  15. Question 15 of 20Hard

    A block weighs 50 N. When weighed in water, its weight becomes 40 N. The buoyant force on the block is ...

  16. Question 16 of 20Hard

    An object of mass 500 g and volume 200 cm^3 is put into water (rho = 1 g/cm^3). The object will ...

  17. Question 17 of 20Hard

    A hydraulic pump has a small piston of 20 cm^2 and a large piston of 200 cm^2. If the small piston receives 50 N, the force on the large piston is ...

  18. Question 18 of 20Hard

    The ratio of hydrostatic pressure at a depth of 1 m to that at a depth of 3 m (same liquid) is ...

  19. Question 19 of 20Hard

    An object floats in water (rho = 1 g/cm^3) with 40% of its volume submerged. The object's density is ...

  20. Question 20 of 20Hard

    The wall of a dam is made thicker at the bottom. The reason is ...

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Pressure — Science Grade 8 · Middle School — Question Bank — Nuvora