Unit 3 PE Flashcards
Know Characteristics of skills, skill acquisition and biomechanical principles.
What are the classifications of skills?
Gross, Fine, Closed, Open skills.
What are the characteristics of gross and fine motor skills?
gross motor skills are a large group of muscles and fine are a smaller group of muscles.
Does closed practice have low or high inter-trial variability?
low inter-trial variability.
What are the 3 stages of learning?
Cognitive, Associative, Autonomous.
What are two characteristics of each S.O.L?
Cognitive - complete beginner and has errors in performance.
Associative - ability to detect errors and focuses on skill refinement.
Autonomous - almost perfect and has a high skill level.
What skill has no distinct beginning or end?
Continuous.
What skill has a distinct beginning and end?
Discrete.
What skill has several discrete movements?
Serial.
What is Massed practice and what is an advantage?
Massed practice has little rest and covers a lot of different skills. An advantage is that performers can complete a variety of skills.
What is Blocked practice and what is an advantage?
Blocked practice involves the repetition of the same skill. An advantage is that it develops motor skill development quicker for the performer.
What is distributed practice?
Distributed practice is short sessions but they are more frequent.
What is random practice?
Random practice involves a variety of different skills in a training session.
What is QMA?
preparation, observation evaluation, and error correction.
What are some socio-cultural factors?
Family, SES, gender, peers, local community, beliefs/norms.
What is a task-constraint?
A task constraint any change of rules within a game.
This can include size of field and different equipment used.
What is a environmental constraint?
An environmental constraint is anything external to the athlete. This includes, noise level, weather, terrain, access to facilities.
What are some individual constraints?
Body weight, fitness, genetics, mental skills.
What is the relationship between motor skill development, participation, and performance?
Motor skills can be an enabler or barrier to participation. People are more likely to participate if they have the skills required which enhances their performance.
Advantages of CONSTRAINTS BASED coaching?
learner orientated, explicit instruction, discovery based.
Disadvantages of CONSTRAINTS BASED coaching?
Errors in performance, not suitable to all, time consuming.
Advantages of DIRECT BASED coaching?
explicit learning, focus on skills, builds confidence.
Disadvantages of DIRECT BASED coaching?
Coach orientated, autocratic, commanding.
What is inertia?
Inertia is the reluctance of an object or body to change.
What is moment of inertia and it’s formula?
Moment of inertia is the resistance of an object to change it’s angular motion. Mass x Radius 2.
What does greater mass allow and what does less mass allow?
Greater mass allows for a greater inertia and a lighter mass allows for less inertia.
What is force and it’s formula?
Force must be unbalanced to overcome inertia. F = M x A.
High moment of inertia means you have spread or closed body parts?
spread.
What is the formula for momentum?
Momentum = Mass x Velocity.
What is impulse and it’s formula?
Impulse is the change in momentum of an object. I = F x T.
Aim of Force Summation/Summation of momentum?
The aim is to generate momentum and force in a sequential manner in the body.
What is angular momentum?
Angular momentum is conserved when the body is in flight.
Greater momentum is harder to…
Stop.
If moment of inertia DECREASES the ANGULAR VELOCITY will increase to conserve what?
Angular momentum.
What is Newton’s First Law?
Inertia. Newton’s first law states that an object will remain at rest unless an external force is acted upon it.
What is Newton’s Second Law?
Acceleration. Newton’s second law states that the acceleration of an object is directly proportional to the force and inversely proportional to it’s mass.
What is Newton’s third law?
Equal and opposite action-reaction. Newton’s third law states for every action there is an equal and opposite action-reaction.
What is Linear motion?
Motion that occurs in a straight line.
What is speed?
How quickly a body moves over a certain distance.
What are 2 external factors that affect projectile motion?
Air resistance and gravity.
3 influences of projectile motion are:
Height of release, angle of release, speed of release.
What is velocity?
Displacement/Time.
What is torque?
The tendency of an object to rotate.
Distance vs Displacement.
Distance is the total distance a body have covered from start to finish.
Displacement is the change of position from the start to the finish.
What is angular motion?
The movement of a body around a central point.
