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Physics Support Materials Higher Mechanics and Properties of Matter

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Physics Support Materials Higher Mechanics and Properties of Matter

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    1. Physics Support Materials Higher Mechanics and Properties of Matter Solutions to Problems - Density and Pressure

    2. Physics Support Materials Higher Mechanics and Properties of Matter A block of iron has a mass of 40000 kg and a volume of 5 m3 . What is its density?

    3. Physics Support Materials Higher Mechanics and Properties of Matter What is the mass of a cylinder of aluminium with a volume of 2.5 m3. (The density of aluminium is 2700 kg m-3).

    4. Physics Support Materials Higher Mechanics and Properties of Matter 1 kg of nitrogen gas is used to fill a balloon. If the density of nitrogen is 1.25 kg m-3 , find the volume of the balloon.

    5. Physics Support Materials Higher Mechanics and Properties of Matter A tank measures 60 cm long and 40 cm wide. 72 kg of water are to be poured into the tank. How deep will the water be? (Density of water is 1000 kg m-3).

    6. Physics Support Materials Higher Mechanics and Properties of Matter What will be the mass of air in a classroom with the dimensions: length 15 m, breadth 10 m, and height 4 m? (The density of air is 1.3 kg m-3).

    7. Physics Support Materials Higher Mechanics and Properties of Matter In the diagram below the piston contains 0.2 kg of oxygen, which has a density of 1.43 kg m-3.

    8. Physics Support Materials Higher Mechanics and Properties of Matter 0.01 m3 of water is heated until it changes to steam. What will be the approximate volume of steam?

    9. Physics Support Materials Higher Mechanics and Properties of Matter A box weighs 120 N and has a base area of 0.2 m2. What pressure does it exert on the ground?

    10. Physics Support Materials Higher Mechanics and Properties of Matter If atmospheric pressure is 100000 Pa, what force does the air exert on a wall of area 10 m2 ?

    11. Physics Support Materials Higher Mechanics and Properties of Matter A rectangular steel block measures 10 cm x 8 cm x 6 cm. What is the greatest and the least pressure which it can exert on a surface? (Density of steel is 8000 kg m-3 ).

    12. Physics Support Materials Higher Mechanics and Properties of Matter Estimate the pressure you exert on the floor when you are standing on one foot.

    13. Physics Support Materials Higher Mechanics and Properties of Matter What is the pressure due to a depth of 10 m of water? (Density of water = 1000 kg m3 ).

    14. Physics Support Materials Higher Mechanics and Properties of Matter A water tank has a base of cross-sectional area 0.5 m2 and a depth of water 1.5 m. Calculate:

    15. Physics Support Materials Higher Mechanics and Properties of Matter Water is supplied to flats from a tank on the roof. Find the extra water pressure available to residents on the ground floor if the taps are 30 m below the level of the taps on the top floor.

    16. Physics Support Materials Higher Mechanics and Properties of Matter A cube of side 12 cm is completely immersed in a liquid of density 800 kg m-3 , so that the top surface is horizontal and 20 cm below the surface of the liquid. Calculate the fluid pressure:

    17. Physics Support Materials Higher Mechanics and Properties of Matter A cube of wood of sides 0.5 m floats in a large tank of water at a height of 0.3 m above the surface. Calculate the:

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