Swimming Australia Teacher Unit 2 Exam "Practical Biomechanics" by asctaACCREDITATION

This exam consists of up to 20 multi-choice questions to test your understanding. You can start the exam and takes breaks as you go, the system will track your progress. A 100% pass rate is required. Good luck!

Unit 2 Exam - Practical Biomechnics

Buoyancy forces act in what direction on a swimmer?

  • Upwards
  • Downwards
  • Sideways
  • Forwards

The force which moves a swimmer forwards is called?

  • Buoyancy
  • Gravity
  • Propulsion
  • Resistance

The force which acts to slow a swimmer down is called?

  • Buoyancy
  • Gravity
  • Propulsion
  • Resistance

If the gravitational force is greater than the buoyant force then the person will float.

  • True
  • False

As displacement increases the buoyant force reduces.

  • True
  • False

A buoyant force is determined by measuring the ...?

  • The weight of the water displaced by a swimmer
  • The weight of the swimmer in the water
  • The weight of one litre of water
  • The amount of water displaced in litres

If a swimmer took a deep breathe whilst floating on the surface of the water, which one of the following would increase?

  • The gravitational force
  • The bouyant force
  • The centre of buoyancy
  • The resistance forces

Which one of the following is heavier than water?

  • Body fluids
  • Muscle
  • Fat
  • Air

Which one of the following is lighter than water?

  • Body fluids
  • Muscle
  • Fat
  • Bone

A swimmer can move the centre of gravity closer to the centre of buoyancy by...?

  • Keeping the arms in the water and raising them above the head
  • Stretching the legs out straight
  • Taking a deep breathe of air
  • Keeping the hands by the upper legs

A swimmer will float better in salt water.

  • True
  • False

With a kickboard extended out in front, a learner is most likely to have their legs...?

  • Float higher in the water
  • Sink lower in the water
  • Not change in position
  • Freestyle kick with the knees straighter

If the pathway of your hand through the water makes a sudden change in direction your hand speed will...?

  • Move faster
  • Slow down
  • Not change speed at all
  • Accelerate

If your hand through the water makes a gradual change in direction your hand speed will...?

  • Continue at the same speed or slow marginally
  • Slow down dramatically
  • Stop
  • Increase dramatically

Resistance is the name given to the type of forces that...?

  • Slow a swimmer down
  • Help a swimmer go faster
  • Lift a swimmer higher in the water
  • Give momentum for movement

Which of the following is NOT a name for a resistance force?

  • Frontal
  • Surface
  • Eddy
  • Bernoulli

Frontal resistance increases if a swimmer...?

  • Lifts their arms out of the water
  • Has their legs lower in the water
  • Streamlines
  • Slows down

The correct sequence for recovery from a front float is...?

  • Lift the head, scull down with the hands, bend the knees and place the feet on the pool floor and stand up
  • Bend the knees, lift the head, scull down with the hands, place the feet on the floor of the pool, and stand up
  • Scull down with the hands, lift the head, bend the knees and place the feet on the pool floor and stand up
  • Lift the head, bend the knees, scull down with the hands and place the feet on the pool floor and stand up

The correct sequence for recovery from a back float is...?

  • Bend the knees, lift the head, scull the hands towards the feet, place the feet on the floor of the pool and stand up
  • Lift the head, scull down with the hands, bend the knees and place the feet on the pool floor and stand up
  • Scull down with the hands, lift the head, bend the knees and place the feet on the pool floor and stand up
  • Lift the head, bend the knees, scull down with the hands and place the feet on the pool floor and stand up

The first area of movement taught in the water away from the edge is usually...?

  • Kicking
  • Gliding
  • Arms
  • Stroke Timing

When floating or gliding, a better body balance can be achieved by...?

  • Moving slower through the water
  • Positioning the arms and legs wider apart
  • Not kicking
  • Lifting the head up

It is important when practicing any kicking that...?

  • All kicking is practised at a fast speed
  • The kickboard is positioned forward of the swimmers head
  • The face is out of the water
  • The body position of the learner mimics that of a swimmer

The second half of the stroke (the recovery) is done much faster than the first half in all strokes except which stroke?

  • Freestyle
  • Breaststroke
  • Backstroke
  • Butterfly

In which stroke is the propulsive pathway of the arms sometimes referred to as a 'keyhole stroke'?

  • Freestyle
  • Backstroke
  • Breaststroke
  • Butterfly

In which stroke is the propulsive pathway of the arms sometimes referred to as an "S pathway"?

  • Freestyle
  • Backstroke
  • Breaststroke
  • Butterfly

In which stroke does the little finger enter the water first in front of or just wider than the shoulders?

  • Freestyle
  • Breaststroke
  • Backstroke
  • Butterfly

On the recovery in which stroke do the thumbs point down and the back of the hands lead?

  • Freestyle
  • Backstroke
  • Breaststroke
  • Butterfly

On the recovery in which stroke should the arms be as high as possible over the body, with the shoulder rolling up first to assist the arm out of the water?

  • Freestyle
  • Breaststroke
  • Backstroke
  • Butterfly

After the recovery in which stroke, should the hand enter with the elbow raised slightly so that the fingers enter before the rest of the hand?

  • Freestyle
  • Breaststroke
  • Backstroke
  • Butterfly

Sculling is a prime method of gaining propulsion from hand and arm movements.

  • True
  • False

Leverage is a prime method of delivering propulsion to a swimmer from their arm movement.

  • True
  • False

As the forward speed of a swimmer increases, their...?

  • Body lifts higher in the water
  • Body gets lower in the water
  • Body flattens out on the water
  • Face looks down more

Frontal resistance is evidenced by...?

  • Swirling water around the feet of the swimmer
  • A bow wave from the swimmer's hips
  • The feet low in the water
  • A bow wave from the front of the swimmer's head

Which is the slowest of the four competitive strokes?

  • Freestyle
  • Breaststroke
  • Backstroke
  • Butterfly

For learners, eddy resistance has the greatest impact on which stroke?

  • Freestyle
  • Breaststroke
  • Backstroke
  • Butterfly

A swimmer may reduce surface friction by...?

  • Wearing a stinger suit
  • Wearing a swim cap
  • Kicking harder
  • Lifting their head

Swimming can be improved by...?

  • Decreasing the length of the arm stroke thus increasing the distance travelled per stroke
  • Improving the grip on the water by fine tuning the angle of the hand in the water
  • Raising the head higher
  • Increasing resistances

Frontal resistance may increase if...?

  • The legs are kept as much as possible within the line of the body
  • The body stays near the surface of the water in a relatively horizontal position
  • In Freestyle and Backstroke the body remains aligned and rolls along an axis down the middle of the body from head to feet
  • The head is kept high

Eddy resistance may increase if...?

  • The feet are kept in a streamlined position near the surface of the water
  • The legs are kept as much as possible within the line of the body
  • The hips are low in the water
  • Ensuring the knees do not bend more than necessary

Surface friction may increase if...?

  • An increased amount of clothing is worn
  • Lightweight, body hugging swimsuits are worn
  • Excess hair is shaved off (in elite swimmers at speed)
  • A swim cap is worn

Swimming aids should be used...?

  • After weighing up the needs of the individual Student
  • For the majority of any lesson
  • Regardless of the likely benefit
  • Every lesson

Paddles are a necessary aid for all Teachers

  • True
  • False

When swimming aids are used they...?

  • Provide too much confidence to beginners
  • Must be used under close adult supervision at all times
  • Increase the chance of drowning at a later time
  • Should only be got out of storage immediately prior to use