Chapter 8

Question 1

The study of forces and the motions produced by their actions related to structure and function of the human body

Answer 1

Biomechanics

Question 2

Factors associated with non-moving or nearly non-moving systems

Answer 2

Statics

Question 3

Factors associated with moving systems

Answer 3

Dynamics

Question 4

Deals with force causing movements

Answer 4

Kinetics

Question 5

Relates to the time, space and mass aspects of movement

Answer 5

Kinematics

Question 6

Refers to how bones move in space. Aka physiologic motion. (flexion/extension, ab-adduction)

Answer 6

Osteokinematics

Question 7

Adjoining joint surfaces move in relation to each other during osteokinematic movement (roll,slide, spin)

Answer 7

Arthrokinematics

Question 8

Push or pull action

Answer 8

Force

Question 9

A quantity having both magnitude and direction

Answer 9

Vector

Question 10

A vector that describes speed and is measured in units such as feet per seconds or miles per hour

Answer 10

Velocity

Question 11

This quantity describes only magnitude

Answer 11

Scalar

Question 12

The amount of matter that a body contains

Answer 12

Mass

Question 13

The property of matter that causes it to resist any change of its motion in either speed or direction.

Answer 13

Inertia

Question 14

The tendency of force to produce rotation around an axis

Answer 14

Torque

Question 15

A force developed by two surfaces, which tends to prevent motion of one surface across another

Answer 15

Friction

Question 16

Newton’s first law. An object at rest, stays at rest and an object in motion stays in motion

Answer 16

Law of inertia

Question 17

Any change in the velocity of an object.

Answer 17

Acceleration

Question 18

The amount of acceleration depends on the strength of the force applied to an object

Answer 18

Law of acceleration

Question 19

For every action there is an equal and opposite reaction

Answer 19

Law of action- reaction

Question 20

Two or more forces are acting along the same line.

Answer 20

Linear force

Question 21

Occur in the same plane and in the same or opposite direction

Answer 21

Parallel force

Question 22

Two or more forces must act on a common point but must pull or push in different directions.

Answer 22

Concurrent forces