Physics Test #6 – Fluids and Floatation

1. Pascal’s law states:
a) Pressure increases with height b) Pressure applied is transmitted equally in all directions c) Liquids have no surface tension d) Pressure is inversely proportional to area

2. SI unit of pressure is:
a) Newton b) Pascal c) Kg/m³ d) Joule

3. Buoyant force depends on:
a) Mass of the object b) Volume of the liquid displaced c) Shape of the object d) Density of the object only

4. Archimedes’ principle is used to measure:
a) Mass of solid objects b) Area of a float c) Buoyant force = weight of displaced fluid d) Water pressure only

5. Floating takes place when:
a) Weight = Buoyant force b) Density of object > liquid c) There is vacuum d) Air pressure is zero

6. Relative density is:
a) Same as density b) Density × g c) Density of substance / Density of water d) Volume / Mass

7. Which of these floats in water?
a) Iron b) Copper c) Wood d) Steel

8. Object sinks when:
a) Buoyant force > weight b) Buoyant force < weight c) Both are equal d) Object has height

9. Density is defined as:
a) Volume/Mass b) Mass × Volume c) Mass/Volume d) Acceleration × Volume

10. Pressure inside a liquid increases with:
a) Depth b) Temperature c) Atmospheric pressure d) Gravity of moon

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