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physical education studies
Terms in this set (76)
a pushing or pulling that changes a body's state of motion
Newton's Second Law
"when a body is acted on by a constant force, its resulting acceleration is proportional to the force applied to it, and inversely proportional to the mass of the object."
= mass x velocity
change in momentum
impulse= force x time
Coefficient of restitution
The elasticity of the collision between an object and a given surface. can only be measured on a scale of 0-1. Zero being inelastic and 1 being extremely elastic.
Force applied to produce linear motion
Off centre force applied to produce angular motion
The quantity of angular motion possessed by a rotating body.
Angular momentum=angular velocity x momentum of inertia
moment of inertia
= mass of the object x radius of rotation
conservation of angular momentum
a spinning body will continue spinning indefinitely unless an external force acts on it.
forces that cause angular motion
two forces acting in opposite directions to rotate a part around an axis
distance between the axis and the point of resistance application
distance between the axis and the force
first class lever F
The fulcrum is positioned between the effort and resistance
second class lever L
the load is between the fulcrum and the input force; never changes the direction of the input force
third class lever E
the effort is between the fulcrum and the load
as the velocity of a fluid increases, the pressure exerted by the fluid decreases
The effect of spin on an objects path and how lift affects that flight path.
When the air flow moves in parallel layers or continuous lines, with no disruption between the layers. Laminar flow is associated low velocity.
When air mixes and irregular in flow and air flow is random. turbulent flow is associated with high velocity.
Pressure Drag (Form Drag)
When an object creates a low-pressure wake behind it that slows it down.
is friction produced between fluid and the surface of a moving object.
is resistance formed by the creation of waves at the point where air and water interact.
conscious thinking or inner conversation the athlete has with themselves. the conversation can be audible or internal.
relaxation techniques are used to relax the body, which includes deep muscle relaxation and lowering brain activity.
are a sequence of tasks, relevant thoughts and actions which an athlete engages in systematically prior to his or her performance.
A process where people try to achieve a specific objective with a certain timeframe.
ability of an athlete to mentally recreate objects, persons, skills, experiences and situations without physically being involved.
the reaction of the body and mind to everyday challenges and demands
a feeling or belief that you can do something well or succeed at something
condition in which the sympathetic nervous system is in control
a need or desire that energizes and directs behavior.
the action or power of focusing all one's attention.
a term used to describe the extent to which a group stays together and united in the pursuit of the common goals and objectives
the normative forces which hold a group together, the physical and social environments
refer to the individual characteristics of group members
the leadership style of both the coaches and any athletes that have leadership roles.
are the aims and experiences of the team together, such as team stability, common goals and team identity.
relaxation or lessening of effort by an individual within a team.
Transfer of learning
is the positive or negative influence one skill has on the acquisition and performance of another skill.
skill to skill transfer
when a skill developed in one sport has an influence on a skill in another sport.
theory to practice
the transfer of theoretical skills into practice
training to competition
the transfer of skills developed into a competition situation
mastery of one task aids learning or performing another
mastery of one task conflicts with learning or performing another
When the learning of one skill has no impact on the learning of another
is a simplified or incomplete version of a skill rehearsed initially and then missing components are gradually added
is when a skill is broken into separate components that are rehearsed individually. Over time the components of the skill are then put together to perform the whole skill. The order is important when chaining
is a coach who has a very strict style, very task orientated and tends to make all the decisions believing he has the knowledge and experience to impart the players.
A cooperative coach who adopts a flexible style that allows players to be involved in the decision-making process.
laissez faire coach
this coach puts little pressure on players and it is hard for players to improve. the coach is very relaxed, unorganized and easy going and establishes an informal learning environment.
refers to a description of the movement without using numbers.
Coach is concerned with the process of developing a prerequisite knowledge base about the particular skill.
involves the systematic gathering information about the performance or movement
Identify the strengths and weaknesses of the performer. Identify methods which can be used to improve the performance.
Involves providing feedback and corrections to the performer, usually under practice conditions, to improve performance.
is made up of key criteria for a successful performance that help determine the technical and tactical ability of performers.
used to record feelings and emotions, keep record of successes, failures and suggestions for improvements.
provides critical and constructive feedback to help the performer continue to improve.
A method of gathering information used which allows the performers to watch their own performance and complete various observation sheets
gather information about the individual players, the leadeship group potential leaders and coaching staff.
the thin layer of fibrous connective tissue covering the muscle belly. It transfers tension to the bone, via the tendon.
is a bundle of muscle fibres
connective tissue protecting the fascicle and holding the bundle of fibres together. Creates a pathway for nerves and blood supply and also elastic tension.
are the cells of the skeletal muscle. they are where force is generated. the muscle fibres are protected by the endomysium.
the basic contractile unit of the muscle fibre. They are thread like strands that run the full length of the muscle fibre.
contractile unit of a muscle fiber
when myosin heads attach to actin
the force a muscle can produce is dependent on the velocity of which contraction occurs
how much force can be produced at different muscle lengths across a range of movement.
are nerves responsible for transmitting impulses away from the spinal cord and brain to the muscle or other nerve cells.
refers to a single motor neuron and al the muscle fibres it innervates
all or nothing principle
If the threshold is reached the muscle fibres in a motor unit will either contract with 100% force or not at all.
motor units with larger and larger fibers are recruited as stimulus intensity increases
when the body recruits muscle fibres according to the intensity of the activity about to be undertaken.
THIS SET IS OFTEN IN FOLDERS WITH...
Unit 1 Physical Education
Physical Education Unit 2
Functional Anatomy (Physical Education Studies)
Physical Education (Unit 3)
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