Quiz 2

Question 0

Tension

Answer 0

When forces are applied colinear in opposite directions

Question 1

Mechanics

Answer 1

analysis of a force acting on an object

Question 2

Compression

Answer 2

when forces are applied colinear and act towards each other

Question 3

Shear

Answer 3

When two forces are applied in parallel and act in opposite directions

Question 4

Figure 3-1 4 characteristics of a force.

Answer 4

Magnitude
Direction of force
Line of application
Point of application
F=m*a

Question 5

Why know The 4 characteristics?

Answer 5

So you can decipher where the issue lies?

Question 6

Power

Answer 6

is the rate of doing work or dissipating energy

Question 7

Magnitude

Answer 7

the amount of push or pull

Question 8

Gravity

Answer 8

A force directed toward the center of earth pull on everything equally 9.8m/s^2

Question 9

Inertia

Answer 9

Is the tendency to resist changes in their state of motion

Question 10

Bouyancy

Answer 10

When an object is placed in a fluid, the fluid exerts an upward force we call the buoyant force.

Question 11

Force

Answer 11

A push or a pull

Question 12

Load

Answer 12

an outside force acting upon a object

Question 13

Pressure

Answer 13

defines how a force is distributed over an area

Question 14

Strength

Answer 14

the ability of a muscle to produce or resist a force

Question 15

V

^ ^
Describe forces

Answer 15

Top line : compression
Lower line : Tension
Ends to middle : Shear

Question 16

V
=====
I I
I I
Describe the forces

Answer 16

Top line : compression
Lower line : Tension
Corner  : Shear
Lower right: Compression
Lower Left: Tension

Question 17

Hooks Law
Definition
Example

Answer 17

F= k*X The force” or “the extension is proportional to the Change in length
Spring stretch or tendon

Question 18

Newton’s 1st
Definition
Application

Answer 18

An object remains in its existing state of motion unless acted upon by an outside source
Head injuries, once a muscle has been fired it is easier to keep in motion

Question 19

Newton’s 2nd
Definition
Application

Answer 19

If an outside source acts upon an object, it will change its velocity proportionally to the force applied.
rotating limbs

Question 20

Newton’s 3rd
Definition
Application

Answer 20

Gravity An object will react with a force of equal magnitue and opposite direction o the first force.
???

Question 21

Levers Class 1

Answer 21

teeter-totter

Force Fulcrum Load

Question 22

Levers Class 2

Answer 22

Brachioradialis

Fulcrum Load Force

Question 23

Levers Class 3

Answer 23

Fulcrum Force Load

Question 24

Resolution of Forces

Answer 24

Dividing a force into its components

Question 25

Composition of forces

Answer 25

Adding forces together to find the result of the forces

Question 26

The process of injury repair

Answer 26

Inflammatory reaction with hematoma formation
Microphage infiltration
Fibroblastic and collage nous proliferation
Function of the satellite cells

Question 27

Muscle strains causative factors 6

Answer 27

1 inadequate flexibility
2 inadequate strength/ endurance
3 dis-synergistic muscle contraction
4 insufficient warm up
5 poor biomechanics or style
6 inadequate rehab