# Shared Flashcard Set

## Details

Eagle Pak 2.1 - Vocabulary
This set covers some vocabulary from the first section of the second unit of Eagle Pak.
21
Fitness
09/24/2013

Term
 Biomechanics
Definition
 -the science concerd with internal and external forces acting on the body and the effect produced by those forces
Term
 Kinesiology
Definition
 -the study of human motion (anatomical, mechanical, and muscular nervous system)
Term
 Velocity
Definition
 -the measurement of a body's motion in a defined direction (often related to speed)
Term
 Force
Definition
 -strength or energy by which work is performed
Term
 Acceleration
Definition
 -the rate in which velocity increases with the respect of time
Term
 Mass
Definition
 -the amount of matter in a body
Term
 Work
Definition
 -the distance and direction at which force is applied to the body
Term
 Energy
Definition
 -the capacity of a body to perform work
Term
 Kinetic Energy
Definition
 -the energy a body has when it is motion
Term
 Potential Energy
Definition
 -the energy that accrues because of the position a body occupies relative to the earth's surface
Term
 Gravity
Definition
 -a natural force that pulls a body towards the center of the earth
Term
 Center of Gravity
Definition
 -the center of weight within a body
Term
 Rotary Motion
Definition
 -movement about a center of rotation (axis)
Term
 Linear Motion
Definition
 -movement in a straight line from one point to another
Term
 Newton's First Law
Definition
 -(inertia)-a body at rest will remain at rest and a body in motion will remain in motion at the same speed and in the same direction until acted upon by an outside force
Term
 Newton's Second Law
Definition
 -(acceleration)-a change in velocity of an object is directly proportional to the force producing it and inversely proportional to its mass
Term
 Newton's Third Law
Definition
 -(action and reaction)-for every action there is an equal and opposite reaction
Term
 Lever
Definition
 -a mechanical device used to produce a turning motion about a hinged point (axis)
Term
 First Class Lever
Definition
 -the fulcrum is placed between the weight and the force, producing greater strength and/or speed.
Term
 Second Class Lever
Definition
 -the weight is placed between the fulcrum and the force, producing greater strength
Term
 Third Class Lever
Definition
 -the force is placed between the fulcrum and the weight, producing greater speed
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