Basics and Terminology

Question 1

The study of FORCES and their effects.

Answer 1

Mechanics

Question 2

Branches of mechanics that deals with the geometry of the MOTION OF OBJECTS (inc. Displacement, acceleration, velocity).

Answer 2

Kinematics

Question 3

The study of RELATIONSHIPS between the FORCE system acting on the body and the changes it produces in BODY MOTION.

Answer 3

Kinetics

Question 4

Uses principles of mechanics for SOLVING PROBLEMS related to structure and function of biologic and physiologic systems.

Answer 4

Biomechanics

Question 5

What is the objective of learning biomechanics?

Answer 5

To understand the loading condition of tissues and their mechanical responses.

Question 6

Scalars are ______only.

Answer 6

magnitude

Question 7

Vectors are _____ and _____.

Answer 7

Magnitude and direction

Question 8

Examples of scalars are?

Answer 8

Distance, speed, mass

Question 9

Examples of vectors are? 6

Answer 9

Displacement, velocity, acceleration, weight, momentum, force

Question 10

Vectors are represented graphically by what?

Answer 10

arrows

Question 11

Distance is a ____ quantitidy.

Answer 11

scalar

Question 12

Displacement is a ____ quantity.

Answer 12

vector

Question 13

How much a ground object has covered during it’s motion.

Answer 13

distance

Question 14

How far out of place and object is, overall change in position.

Answer 14

displacement

Question 15

In what circumstances are displacement and direction the same?

Answer 15

If moving in one direction in a straight line.

Question 16

In what circumstance are displacement and direction different?

Answer 16

If the path of travel is not a straight line.

Question 17

Speed is a ____ quantity.

Answer 17

scalar

Question 18

Velocity is a ____ quantity.

Answer 18

vector

Question 19

How fast and object is moving?

Answer 19

speed

Question 20

Speed equation?

Answer 20

Distance over time.

Question 21

The rate at which an object changes position.

Answer 21

velocity

Question 22

Velocity equation?

Answer 22

Displacement over time.

Question 23

The maximize velocity, must maximize what?

Answer 23

Amount displaced from original position.

Question 24

The rate at which an object changes its velocity.

Answer 24

acceleration

Question 25

Equation for acceleration:

Answer 25

change in velocity over time.

Question 26

T/F If an object is not changing it's velocity, then the object is not accelerating?

Answer 26

true

Question 27

Can a person be moving very face and still not be changing velocity?

Answer 27

yes

Question 28

Acceleration has to do with _______ ?

Answer 28

Changing how fast and object is moving.

Question 29

Acceleration is a _____ quantity.

Answer 29

vector

Question 30

The direction of the acceleration vector depends on what two things?

Answer 30

1 - whether object is speeding up or slowing down. | 2- Whether the object is moving in the + or - direction.

Question 31

Mass is a ____ quantity.

Answer 31

scalar

Question 32

Weight is a ____ quantity.

Answer 32

vector

Question 33

Determined by the amount of matter that is contained by the object. (How much stuff is in the object)

Answer 33

mass

Question 34

The force of gravity acting on an object. (the force with which gravity pulls upon that stuff).

Answer 34

weight

Question 35

A 1kg mass is how many newtons? How many pounds?

Answer 35

10 Newton = 2.2 Pounds = 1 kg

Question 36

Gravitational distance changes when?

Answer 36

When the distance between their centers change.

Question 37

Momentum is a ___ quantity.

Answer 37

vector

Question 38

"Mass in motion" - quantity of motion an object possesses.

Answer 38

momentum

Question 39

Momentum (p) =

Answer 39

Mass x velocity

Question 40

Will something that has a lot of momentum be easier to stop?

Answer 40

no

Question 41

If the object is heavier will it have less momentum?

Answer 41

No, it will have more!

Question 42

If you double the mass, what happens to the momentum?

Answer 42

It doubles!!

Question 43

If you quadruple the velocity, what happens to the momentum?

Answer 43

Quadruples

Question 44

A small change in momentum variable means what?

Answer 44

A big change in momentum

Question 45

How does momentum translate of chiropractic?

Answer 45

High velocity = greater momentum