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Biomechanics > Mechanics > Flashcards

Mechanics Flashcards

1
Q

3 basic dimensions

A

-length
-mass
-time

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2
Q

Length, Mass, Time units

A

meters,kilograms, seconds

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3
Q

Force (definition)

A

-effect of one body on another
-a push or pull applied to an object
-that which is needed to change the state of motion of an object

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4
Q

Force (unit)

A

Newtons
1kgx1m/s

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5
Q

Force (equation)

A

F=ma

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6
Q

Internal Force

A

From within the system

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7
Q

External force

A

from outside of the system

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8
Q

Scalar

A

Magnitude only (number and unit)
length
speed
volume
temp
mass

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9
Q

Vector

A

Magnitude and direction (number,unit, direction)
force
velocity
acceleration
torque

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10
Q

Types of motion

A

1 linear
-rectilinear
-curvilinear
2 angular
3 General

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11
Q

Linear motion

A

translation of the body in which all parts of the body travel in the same direction at the same time

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12
Q

Rectilinear Motion

A

straight line (running)

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13
Q

Curvilinear motion

A

curved line (sky diving)

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14
Q

Angular motion

A

all parts of the body travel through the same angle, in same direction at same time
E.G. hands on a clock, high bar gymnastics, leg left

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15
Q

General motion

A

combination of linear and angular
e.g. wheels turning in the car results in linear motion

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16
Q

Mechanics categories

A

Statics
Dynamics
Fluids

17
Q

Dynamic Mechanics

A

Kinematics and Kinetics

18
Q

Kinematics

A

Linear and Angular

19
Q

Kinetics

A

Linear and angular

20
Q

Statics

A

Study of systems in a constant state of motion (at rest or at constant velocity without accel)

21
Q

Dynamics

A

Study of systems in a changing state of motion (includes acceleration)

22
Q

Kinematics

A

Description of motion (how fast how far etc)
-displacement, velocity, accel.

23
Q

Linear Kinematics

A

Movement along same line with same direction, and speed

24
Q

Angular Kinematics

A

rotation about an axis or point

Biomechanics (11 decks)

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