Biomech definitions

Question 1

acceleration

Answer 1

rate of change of velocity

Question 2

angular motion

Answer 2

a form of motion where all parts of an object do not experience the same displacement

Question 3

base of support (BOS)

Answer 3

the area of contact between an object and its surroundings where reaction forces can be generated

Question 4

centre of mass (com)

Answer 4

the point in an object or body where the sum of the products of the masses equal zero

Question 5

centre of pressure (COP)

Answer 5

the point on a plane surface at which the resultant pressure on the surface may be taken to act

Question 6

displacement

Answer 6

the difference in position of two points

Question 7

electromyography (EMG)

Answer 7

the measurement of electrical activity in muscle fibers

Question 8

force

Answer 8

a mechanical interaction between an object and its surroundings

Question 9

force platform

Answer 9

an instrument used to measure the reaction forces three dimensions and moments about those three axes

Question 10

kinematics

Answer 10

the description of motion of a body in terms of displacement, velocity nad acceleratin without reference to the forces causing hte motion

Question 11

kinetics

Answer 11

the description of motion of a body in terms of the forces that cause the motion

Question 12

linear motion

Answer 12

a form of motion in which all parts of an object experience the same displacement