Worksheets11 HMS - Biomechanics: Fluid Mechanics
Total questions: 12
Worksheet time: 6mins
What is fluid mechanics concerned with?
Properties of solids
Properties of gases and liquids
Properties of metals
Properties of light
What happens if the average total body density is higher than that of water?
The body floats
The body sinks
The body remains suspended
The body evaporates
Where is the centre of gravity generally found in the human body?
Head
Feet
Waist
Hands
What must a swimmer do to maintain the ability to float?
Relax all muscles
Contract abdominal muscles
Extend arms and legs
Increase body density
What is the force that opposes the forward motion of a body or object, reducing its speed or velocity?
Lift
Drag
Thrust
Gravity
Which of the following techniques helps a swimmer reduce drag?
Keeping the body unaligned
Engaging the core muscles
Bending the knees excessively
Keeping the toes unpointed
What is the role of lift in swimming?
To slow down the swimmer
To propel the swimmer forward
To increase water resistance
To decrease buoyancy
How can a swimmer maintain a streamlined position?
By bending the knees
By keeping the head in a neutral position
By spreading the arms wide
By lowering the hips
What is the primary factor that determines whether an object will float or sink in water?
Temperature of the water
Density of the object
Shape of the object
Color of the object
Which body position is most effective for reducing water resistance while swimming?
Curved position
Diagonal position
Vertical position
Horizontal position
What is the effect of increasing the surface area of a swimmer's body in the water?
Increases speed
Decreases drag
Increases drag
Decreases buoyancy
What is the effect of wearing a swim cap on a swimmer's performance?
Decreases propulsion
Increases buoyancy
Reduces drag
Increases drag
