Chapters 1-3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Application of mechanical principles in the study of living organisms | Biomechanics
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| Study of systems in constant motion (including zero motion) (equilibrium) | Statics
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| Study of systes subject to acceleration (changing velocity, speeding up or slowing down) | Dynamics
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| Study of appearance or description of motion (result of kinetics) (time and space) | Kinematics
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| Study of action of forces | Kinetics
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| Study of human movement | Kinesiology
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| Pertaining to quality (without the use of #'s) | Qualitative
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| Involves the use of numbers (what most questions are) | Quantitative
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| What linear and angular kinematics together (at the same damn time) is called (includes most human motion) | General Motion
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| Acceleration x time | Velocity
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| Push or a pull, characterized by magnitude, direction and point of application, Mass x acceleration (represented by F, unit is N, Newton) | Force
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| Compressive forces, pressure, squeezing forces directed axilly through body | Compression
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| Opposite of compression, directed axilly through the body (pulling, stretching force) | Tension
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| 3rd category of force, directed parallel to surface | Shear
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| Asymmetric loading that produces a tension force on one side of the body's longitudinal axis and compression on the other side | Bending
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| Rotation along the longitudinal axis of the body (load-producing twisting of the body) | Torsion
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| Quantity that has magnitude and direction, represented with an arrow (force, weight, pressure) | Vectors
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| Vectors added together, determining a single vector from two or more vectors by vector addition | (Vector) Composition
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| Replaces a single vector with two perpendicular vectors, vector composition of two perpendicular vectors yields the original vector | (Vector) Resolution
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| Repeated application of a subacute load of relatively low magnitude (chronic injury) | Repetitive Loading
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| Application of sufficient force to cause injury to a biological tissue (acute injury) | Acute Loading
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| Exceeding ultimate failure point, mechanical failure of structure (fx) | Deformation
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| Object's ability to stay in motion, tendency of a body to resist a change in its state of motion, proportional to mass, has no untis | Inertia
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| Elastic vs plastic, involves collision of two bodies over a small time to which both objects exert a large force over each other | Impact
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| Quantity of motion, must have mass and velocity, units are kg.m/sec | Momentum
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| Rotary effect created by an eccentric force, moment of force, angular equivalent of linear force | Torque
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| Center of mass, point which the body's weight is equally balanced no matter position, serves as index of total body motion | Center of Gravity
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| Biological systems | Bio
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| Analysis of the action of force | Mechanics
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| Encompasses both clinical and scientific aspects of exercise and sport | Sports Medicine
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| Closer to head | Superior
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| Father from head | Inferior
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| Towards front of body | Anterior
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| Towards back of body | Posterior
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| Toward the midline of the body | Medial
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| Away from midline of the body | Lateral
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| Closer to truck | Proximal
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| Further from truck | Distal
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| Towards surface of body | Superficial
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| Inside the body away from the surface | Deep
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| Plane in which forward and backward movements occur | Sagittal Plane
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| Plane in which lateral movements occur | Frontal Plane
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| Plane in which rotational movements occur | Transverse Plane
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| Axis around which rotations in sagittal plane occur (sagittal) | Mediolateral Axis
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| Axis around which rotations in sagittal plane occur (frontal) | Anteroposterior Axis
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| Axis around which rotational movements occur | Longitudinal Axis
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| Form of motion along a line | Linear Motion
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| Form of motion along a straight line | Rectilinear Motion
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| Form of motion along a curved line | Curvilinear Motion
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| Body or portion of a body deliberately chosen by an analyst | Mechanical System
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| Quantity of matter composing a body (represented by m, untis are kg) | Mass
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| Change in motion, rate of change of velocity over time, inversely proportional to mass (represented by a, units are m/s2) | Acceleration
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| Diagram showing vector representations of all forces acting on a defined system | Free Body Diagram
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| Single resultant force derived from vector composition of all acting forces, force determining net effect of all acting forces on a body | Net Force
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| Index of elasticity between colliding bodies, ranges from 0 (perfectly plastic) to 1 (perfectly elastic) | Coefficient of Restitution
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| Attractive force that the earth exerts on a body, product of mass and acceleration of gravity, unit is N (b/c weight is force) | Weight
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| Point of application of weight force | Body's Center of Gravity
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| Force per unit of area which the force acts, describes force districution within a fluid (units are N/m2) | Pressure
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| Force per unit of area over which the force acts, commonly used to describe force distribution within a solid (units are N/m2) | Stress
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| Space occupied by a body, three dimensional (width, height, depth) (units are m3, and cm3) | Volume
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| Mass per unit of volume, small greek letter rho, units are kg/m3 | Density
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| Weight per unit of volume, greek letter gamma, units are N/m3 | Specific Weight
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| Product of force and time over which the force acts (units are Ns) | Impulse
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