remains constant - Answers As the surface area of two objects in contact increases, what happens to the
force of friction?
friction force - Answers The force that acts parallel to an object in contact with a surface is called-
normal contact force - Answers The force that acts perpendicular to an object in contact with a surface
is called-
increases - Answers As the normal contact force increases, what happens to the friction force?
forces - Answers push or a pull
magnitude - Answers When drawn, the length of a vector describes it-
forces acting on a body - Answers A free-body diagram displays:
act through same point - Answers Concurrent forces are forces that-
direction
magnitude - Answers To fully define a vector quantity, you must specify-
force resolution - Answers the process of determining each of the forces that combine to make up a
resultant force is called-
m/s^2 - Answers units of accelerations are-
direction - Answers what factor differentiates velocity from speed?
displacement/time - Answers velocity is calculated as-
curvilinear - Answers what term best describes linear motion along a curved line?
velocity - Answers acceleration describes the time rate of change of-
sagittal - Answers elbow extension takes place in what plane?
frontal - Answers abduction occurs in which plane?
front and back halves - Answers the cardinal frontal plane divides the body into equal _____
longitudinal - Answers movements in transverse plane occur around which axis?
flexion
extension
plantar flexion - Answers Examples of sagittal plane movement-
, absolute angular position - Answers description used when one of intersecting lines in immovable
relative to the earth
relative angular position - Answers description used when both intersecting lines are capable of moving
anatomical position - Answers considered the starting point for all body segment movements (starting
point of motion)
sagittal plane - Answers divides body vertical into left and right halves
ex- running, summersalt
frontal plane - Answers divides body into front and back halves
ex- jumping jacks
transverse plane - Answers divides body into top and bottom halves
ex- spins, pirouette
transverse axis - Answers imaginary line passing through body from side to side
transverse axis - Answers sagittal plane rotation occurs
anteriorposterior axis - Answers passing from front to back through body
anteriorposterior axis - Answers frontal plane rotation occurs
longitudinal axis - Answers passes from top to bottom
longitudinal axis - Answers transverse plane rotation occurs
perpendicular - Answers each axis is associated with the plane it is __________ with
angular position - Answers orientation of a line with another line
angular displacement - Answers change in absolute angular position experienced by a rotating line
action - Answers force that is exerted by one object on another ________
reaction - Answers force is matched by an equal but opposite force exerted by the second object
_______
Newton N - Answers units of force
tensile
compression - Answers internal forces
tensile - Answers -internal force that pulls