Kinetics and Forces

Question 1

the study of motion under the influence of forces

Answer 1

kinetics

Question 2

change in position over time

Answer 2

motion- displacement

Question 3

linear displacement

Answer 3

translatory motion

Question 4

The segment moves in a curved path around a fixed axis (AoR)

Answer 4

rotary motion

Question 5

angular displacement

Answer 5

rotary motion

Question 6

the study of motion without regard to the forces that cause it

Answer 6

kinematics

Question 7

sagittal plane moves around

Answer 7

x axis

Question 8

transverse plane moves around

Answer 8

y axis

Question 9

the frontal (coronal) plane moves around

Answer 9

z axis

Question 10

displacement per unit of time regardless of direction

Answer 10

speed

Question 11

distance traveled in a certain time in a certain direction

Answer 11

velocity

Question 12

change in velocity per unit of time

Answer 12

acceleration

Question 13

a push or pull

Answer 13

force

Question 14

4 components of force vectors

Answer 14

magnitude
direction
line of action
point of application

Question 15

force acting to rotate a body around an axis

Answer 15

moment

Question 16

tends to cause or change rotary movement

Answer 16

moment

Question 17

effect of a rotary force depends on:

2

Answer 17

magnitude of the force

moment arm length

Question 18

a moment is also known as

Answer 18

torque

Question 19

depends on the mass of the object

Answer 19

magnitude

Question 20

gravity always acts in what direction

Answer 20

downward

Question 21

The point at which the total mass of abody is considered concentrated

Answer 21

CoG

Question 22

human body CoM

Answer 22

S2

Question 23

what two things affect stability

Answer 23

base of support

line of gravity relative to BOS

Question 24

newtons 3rd law

Answer 24

for every action, theres an equal and opposite reaction

Question 25

Fy is

Answer 25

perpendicular and rotary

Question 26

Fx is

Answer 26

parallel and translatory

Question 27

the frontal (coronal) plane moves around

Answer 27

z axis

Question 28

displacement per unit of time regardless of direction

Answer 28

speed

Question 29

distance traveled in a certain time in a certain direction

Answer 29

velocity

Question 30

change in velocity per unit of time

Answer 30

acceleration

Question 31

a push or pull

Answer 31

force

Question 32

4 components of force vectors

Answer 32

magnitude
direction
line of action
point of application

Question 33

force acting to rotate a body around an axis

Answer 33

moment

Question 34

tends to cause or change rotary movement

Answer 34

moment

Question 35

effect of a rotary force depends on:

2

Answer 35

magnitude of the force

moment arm length

Question 36

a moment is also known as

Answer 36

torque

Question 37

depends on the mass of the object

Answer 37

magnitude

Question 38

gravity always acts in what direction

Answer 38

downward

Question 39

The point at which the total mass of abody is considered concentrated

Answer 39

CoG

Question 40

human body CoM

Answer 40

S2

Question 41

what two things affect stability

Answer 41

base of support

line of gravity relative to BOS

Question 42

newtons 3rd law

Answer 42

for every action, theres an equal and opposite reaction

Question 43

Fy is

Answer 43

perpendicular and rotary

Question 44

Fx is

Answer 44

parallel and translatory