questions i get wrong

Question 2

which of the following are physiological effects of the use of anabolic steroids?

1. increase in aggressive behavior
2. depression
3. high blood pressure
4. acne
5. liver damage
6. lowered spercount in males

Answer 2

3,4,5,6

Question 3

the coach of a yr 10 interschol netball team is concered that two of the players are social loafing. what should the coach do to improve this situation?

Answer 3

set team goals for skill and or fitness targets for training sessions

Question 4

what type of lever is plantar flexion to standing ono tiptoes and elbow flexion to do a bicep curl

Answer 4

tiptoes= second class
bicep crl 3rd class

Question 5

Identify what type of spin Thomas would suggest the players place on the ball to
increase the distance of their throw. Explain how the spin effects the ball’s flight path.

Answer 5

Identifies Backspin as the suggested type of spin. 1
* Velocity of air on top of ball is fast/high causing a low pressure area
* Velocity of air on bottom of ball is slow/low causing a high pressure
area
* Air moves from high pressure area to area of low pressure
* Lift/magnus force is created from air movement.

Question 6

Describe two physiological effects she would have experienced from having this
stimulant in her system.

Answer 6

Two marks for each effect. Any two of the following:
Increased heart rate/Cardiac output
Which improves delivery of oxygen to the working muscles 1–2
increased respiratory rate
Which improves delivery of oxygen to the working muscles 1–2
Increased Central Nervous System (CNS) activity
Which improves reaction time/alertness/speed/anaerobic performance 1–2
Suppresses neurotransmitter in nervous system
Which masks fatigue/pain and ability to push through it 1–2
Increased metabolism
Which reduces weight 1–2
Increase blood pressure
Which makes the blood vessel dilate and contract more forcefully 1–2
Increased body temperature
Which makes the athlete feel hotter/more likely to suffer from
overheating/sweat more

Question 7

It has been well documented by the Australian media how through the use of
stimulants some sports people became addicted. Identify three other risks to
athletes who use stimulants.

Answer 7

Any three of the following
* can cause panic attacks
* can cause paranoia
* increased blood pressure (hypertension)
* increase chance of heart attack/disease/stroke
* cause damage to the liver/disease
* cause damage to the kidneys/ disease
* tremors
* insomnia
* coordination and balance problems
* memory deteriorates
* causes violent/aggressive behaviour
* dehydration
* impaired heat regulation

Question 8

Identify the tennis ball that should be used by each player and justify your answer.

different size of people
large person

small person

tennis ball1= coefficient of restitution 0.49

tennis ball2= COR- 0.79

Answer 8

Player A should use Ball 2 Player B should use Ball 1 1
Co-efficient of restitution relates to the bounciness of the ball
or
How much energy remains after a collision between two objects
or
Ratio of height of bounce/velocity
1
High co-efficient of restitution means high bouncing ball
or
low co-efficient of restitution means low bouncing ball
1
Player B is short/child so requires a low bouncing ball to hit/slower velocity
of ball.
or
Player A is tall/adult so requires a higher bouncing ball to hit/faster velocity
of ball.

Question 9

Outline the function of the following components of the neuromuscular system that are
involved in producing a successful shot.

• dendrite
• axon
• neuron
• spinal cord
• motor unit

Answer 9

Dendrites of sensory neurons:
pass impulse/signal from the sensory receptors to the cell body of the
sensory neuron/eye.
1
Axons of motor neurons:
transmit impulse/signals away from cell body to the muscle fibres. 1
Neuron:
a cell within the nervous system that transmits impulse/signals to other
nerve cells/muscle
1
Spinal cord:
transmit impulse/signals from the brain to parts of the body. 1
Motor unit:
causes contraction of the associated muscle fibres
or
to create the desired movement

Question 10

Describe the effect of transfer of learning most likely involved with Chloe and Brooke who used to play in rugby who chnaged to AFLW. Provide an example to support your answer.

Answer 10

• The positive effect of transfer of learning is where a skill developed in
  one sport
• helps/aids/assists the performance of a skill in another sport.
  1–2
  A valid example is included such as:
• tackling in rugby will help in AFL
  or
• evasion skills to avoid being tackled are used in rugby and AFL

Question 11

Justify the difference in the nutritional considerations between the off-season and inseason.

Answer 11

Any two of the following:
Off-season
* Has highest % of fat because for low – medium intensity the body
prefers to use fats.
* Has low % protein because the muscles are not requiring repair after
intense exercise.
* Has lowest % of carbohydrate because low intensity of training occurs
whereby the body prefers to use fats as a fuel source.
1–2
Any two of the following:
In-season
* Has high intensity hence the increased use of glycogen as fuel source
meaning increase in % of carbohydrates.
* High intensity causes more damage to muscles hence increased %
protein for muscle repair.
* In-season involves competition as well as training so increase in
carbohydrates & protein is needed for faster recovery.
* % fat has decreased because fat takes a long time to break down for
a fuel source so is inefficient at high intensity.