Test 1

Question 1

calculate weight

Answer 1

F=ma

Question 2

Newtons first law

Answer 2

object rest stays at rest until force acts on it

Question 3

Newtons second law

Answer 3

F=ma

Question 4

Newtons 3rd law

Answer 4

every force has equal but opp force acting for every action equal but opposite reaction

Question 5

5 types mechnical loads/forces

Answer 5

compression, tension, bending, torque, friction

Question 6

compression

Answer 6

2 forces either side object

Question 7

tension

Answer 7

2 forces pulling either side object

Question 8

bending

Answer 8

compression inside tension outside

Question 9

torque

Answer 9

force against and around fixed location

Question 10

friction

Answer 10

force between 2 objects like trying slide object across another

Question 11

biomechanics

Answer 11

analysis of mechanical systems of humans.. application principal mechanics (analysis action forces on moving things) to living things

Question 12

kinetics

Answer 12

action of forces looking at forces and how it acts (force comes from muscle humans energy atp to generate that force force muscle exert force on limb which exerts force on outside environement)

Question 13

kinematics

Answer 13

study of motion with respect to space and time (velocity, speeding up, slowing down)

Question 14

kinesiology

Answer 14

study human movement

Question 15

Normal force if flat on ground

Answer 15

weight of objects

Question 16

normal force if at angle

Answer 16

portion weight perpendicular to slope

Question 17

center of mass

Answer 17

point in body where mass equally distributed.. balance pint

Question 18

center of gravity

Answer 18

affect due to acceleration of gravity on your COM

Question 19

rectilinear motion

Answer 19

straight line

Question 20

angular motion

Answer 20

fixed axis and attached object rotates around

Question 21

curvilinear motion

Answer 21

motion in a curved line

Question 22

distance

Answer 22

total distance traveled from point A to B

Question 23

displacement

Answer 23

straight line form A to B how far from one to other traveled

Question 24

Speed

Answer 24

distance/time m/s

Question 25

velocity

Answer 25

displacement/time m/s

Question 26

mechanotransduction

Answer 26

process by which mechanical forces cause tissue adaptation apply force to muscles, bones, tendons to help adapt

Question 27

acceleration due to gravity in space

Answer 27

is 0 so there is a lot of atrophy because body weight is actually stimulus for your muscles and bones adapting

Question 28

leg muscle ostrich vs human

Answer 28

humans have muscle and oterages do not making them lighter

Question 29

ostrich legs and running

Answer 29

lower mass in leg allows for higher frequency because swing time is shorter faster and stride frequency is higher

Question 30

ostrich faster because

Answer 30

stride length is longer so go futher and swing time faster because difference lower limb mass

Question 31

fastest land animal

Answer 31

cheetah (hawk that dives faster)

Question 32

fastest sea animal

Answer 32

sword/sail fish

Question 33

Acceleration

Answer 33

Change velocity over change time

Question 33

slowest sea creature

Answer 33

sea cucumber

Question 34

Ski problem f net

Answer 34

Mass x acceleration down slope

Question 35

Theta in ski

Answer 35

90- given angle

Question 36

Fp

Answer 36

Sin theta. Opp/weight

Question 37

Fh

Answer 37

Cos theta. Adj/weight

Question 38

Friction

Answer 38

Coefficient x normal force (fp)

Question 39

Fnet=

Answer 39

Fh-f

Question 40

Yield point bone

Answer 40

Sooner and much higher for bone

Question 41

ER muscle

Answer 41

Much larger

Question 42

Yp is

Answer 42

Injury or strain

Question 43

Ufp

Answer 43

Ultimate failure point and full injury break or tear

Question 44

Raise yp

Answer 44

Decrease likelyhood damage/injury

Question 45

Order of deformation curve

Answer 45

Er. Yp pr ufp