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  Multiple Choice Questions

Chapter 12 – Fluid Biomechanics

In each of the multiple choice questions ONE of the answers is CORRECT.

Q1. Whose principles are the discussion of buoyant forces based upon?

Choice 1 Socrates
Choice 2 Aristotle
Choice 3 Gallileo
Choice 4 Archimedes

Q2. What is the formula used to calculate the density of an athlete?
Choice 1 Mass / Volume
Choice 2 Volume / Mass
Choice 2 Mass / Force

Choice 2 Weight / Mass


Q3. What are the resistive forces that occur due to the collision of a body with fluid molecules?

Choice 1 Torque
Choice 2 Drag
Choice 2 Tension

Choice 2 Buoyancy



Q4. Which of these is not a form of drag?
Choice 1 Form drag

Choice 2 Friction drag
Choice 2 Finite drag

Choice 2 Wave drag



Q5. What does the Bernoulli Effect refer to?
Choice 1 The closer flow lines in fluid are the higher the velocity and lower the pressure
Choice 2 The closer flow lines in fluid are the lower the velocity and higher the pressure
Choice 3 The further apart flow lines in fluid are the higher the velocity and lower the pressure
Choice 3 The further apart flow lines in fluid are the lower the velocity and higher the pressure


Q6. What sporting situation are the principles of Bernoulli best applied to?
Choice 1 Penalty kick

Choice 2 High dive
Choice 3 Hitting a golf ball
Choice 4 Throwing a discus

Q7. What does the Magnus Effect primarily refer to?
Choice 1 Velocity of an object

Choice 2 Spin of an object
Choice 3 Speed of an object
Choice 4 Direction of an object

Q8. What does Reynolds number characterise?
Choice 1 Type of flow

Choice 2 Type of effect
Choice 3 Type of force
Choice 4 Type of spin

Q9. In which of these conditions is a discus thrown furthest?

Choice 1 Moderate headwind
Choice 2 Moderate tailwind
Choice 2 Strong headwind

Choice 2 Strong tailwind


Q10. What term describes the difference between the path of a javelins flight at release and the path of the force exerted by the thrower on the javelin?
Choice 1 Angle of attack

Choice 2 Angle of drag
Choice 3 Angle of force
Choice 4 Angle of release

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