Linear Kinetics (forces)

Question 1

COG

Answer 1

-balance point
-linear forces
-rotary forces
-women:55% of height
-men: 56% of height
-height above crotch

Question 2

gravitation

Answer 2

-greater the mass greater the attraction
-further apart less attraction

Question 3

force

Answer 3

-change of shape or motion of an object or body
-direct mechanical contact
-the effect of one body on another
-mass X acceleration= N

Question 4

4 properties of force

Answer 4

-magnitude
-direction
-point of application
-line of application

Question 5

magnitude

Answer 5

how much force

Question 6

direction

Answer 6

-the way the force is applied along action line
-gravity
-muscle

Question 7

point of application

Answer 7

-where the force is applied

Question 8

line of application

Answer 8

-straight line extending through the point of application

Question 9

Internal force

Answer 9

-forces exerted by bodies on the other bodies within a defined system
-cause differences in body shape

Question 10

external forces

Answer 10

-exerted by bodies within an arbitrarily specified system on bodies outside of that specified system
-cause displacement of body

Question 11

Objects in flight

Answer 11

-no external force
-whole body system
-COG not effected by internal forces
-I.F serve to change shape only

Question 12

Motive Force

Answer 12

-a propulsion force
-types of motive forces

Question 13

resistive force

Answer 13

-a force that acts to resist motion
-types of resistive forces