Quiz 2

Question 0

ISAAC NEWTON’S LAWS OF MOTION:

Answer 0

FIRST LAW- LAW OF INERTIA- WHIP LASH
SECOND LAW- LAW OF ACCELERATION- KICKING A SOCCER BALL
THRID LAW- LAW OF ACTION- REACTION- JUMPING A TRAMPOLINE.

Question 1

CONCAVE JOINT

CONVEX JOINT

Answer 1

CONCAVE JOINT SURFACES MOVE IN THE SAME DIRECTION AS THE JOINT MOTION.
CONVEX JOINT SURFACES MOVE IN THE OPPOSITE AS THE JOINT MOTION.

Question 2

MECHANICAL ADVANTAGE

Answer 2

THE NUMBER OF TIMES A MACHINE MULTIPLES THE FORCE.

Question 3

PULLEY

Answer 3

A GROOVED WHEEL THAT TURNS ON AN AXLE WITH A ROPE OR CABLE RIDING IN THE GROOVE.

Question 4

FIXED PULLEY

Answer 4

A SIMPLE PULLEY ATTACHED TO A BEAM.
FIRST-CLASS LEVER
USED TO CHANGE DIRECTION

Question 5

SCALAR

Answer 5

quantity describes only magnitude. Common scalar terms are length, area, volume, and mass.

Question 6

STATIC

Answer 6

factors associated with nonmoving or nearly nonmoving systems

Question 7

dynamics

Answer 7

factors associated with moving systems and can be divided into kinetics and kinematics.

Question 8

kinetics

Answer 8

forces causing movement in a system

Question 9

force

Answer 9

push or pull can be represented as a vector

Question 10

vector

Answer 10

quantity having both magnitude and direction pushing

Question 11

shoulder gridle

Answer 11

scapula and clavical

Question 12

shoulder joint

Answer 12

scapula and humerus

Question 13

shoulder complex

Answer 13

consist of: scapula, clavicle, sternum, humerus,and rib cage.
includes the sternoclavicular joint, acromioclavicular joint, glenohumeral joint, and the scapulothoracic articulation.

Question 14

5 muscles that attach to the shoulder girdle:

Answer 14

1. trapezius
2. levator scapula
3. rhomboids
4. serratus anterior
5. pectoralis minor

Question 15

scapulohumeral rhythm

Answer 15

2:1 ratio
the first 30 degrees of shoulder joint is pure motion, after that 2 degrees of shoulder flexion or abduction the scapula must upwardly rotate 1 degree.

Question 16

9 muscles that are prime movers:

Answer 16

1. DELTOIDS- ANTERIOR, MIDDLE, POSTERIOR
2. PECTORALIS MAJOR
3. LATISSUMUS DORSI
4. TERES MAJOR
5. TERES MINOR
6. SUPRASPINATUS
7. INFRASPINATUS
8. SUBSCAPULARIS
9. CORACOBRACHIALIS

Question 17

9 movements of shoulder joint:

Answer 17

1. flexion
   2.extension
   3, hyperextension
   4.abduction
2. adduction
   6 horizontal abduction
3. horizontal adduction
4. medial/internal rotation
5. lateral/external rotation

Question 18

6 movements of the scapula:

Answer 18

1. elevation
2. depression
3. protraction
4. retraction
5. upward rotation
6. downward rotaion

Question 19

VELOCITY

Answer 19

a vector that describes speed and is measured in units such as feet per second or miles per hour.