8th Grade Fluid Mechanics Quizzes, Questions & Answers

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The Battles Density Quiz assesses understanding of density and buoyancy through practical scenarios. Participants predict outcomes based on object and liquid densities, enhancing their grasp of fundamental physical properties and...

Questions: 5  |  Attempts: 4567   |  Last updated: Oct 11, 2025
  • Sample Question 1
    An object with a density of 0.85 g/cm3 is dropped into each of the two beakers shown below. What will happen to the object in each case? 
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  • Sample Question 2
    Objects 1 and 2 float as shown in the beaker below. The density of the liquid in the beaker is 3.2 g/mL. Which of the densities given below are possible values for the densities of the two objects? 
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The term “propulsion” means to push forward or drive an object forward. Propulsion systems consist of a source of mechanical power and a propulsor – or means of converting this power into propulsive force. What...

Questions: 24  |  Attempts: 1337   |  Last updated: Feb 6, 2025
  • Sample Question 1
    Direct fuel injection is often used in aero piston engines, in preference to float chamber carburettors. Which of these statements applies to the direct fuel injection system?
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  • Sample Question 2
    In this diagram of an inverted 4-cylinder in-line aero engine, a basic component is shown both in its proper place inside the engine and also, for clarity, enlarged and outside the engine. The component is:
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