kinetics Flashcards

(28 cards)

1
Q

Force is a vector meaning?

A

it possesses both
magnitude and direction

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2
Q

N E W TO N ‘ S F I RS T L A W O F MOT I O N ( I N E RT I A )

A

An object at rest remains at rest, and an object in motion remains in motion at a constant, linear velocity unless acted on by external forces

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3
Q

If ∑F = 0 then

A

∆v = 0

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4
Q

acceleration due to gravity on earth

A

9.81 m/s^2

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5
Q

acceleration due to gravity on moon

A

1.625 m/s^2

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6
Q

Bodyweight (N) =

A

m*a due to gravity

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7
Q

Mechanotransduction

A

The cell-signaling response to
mechanical loading

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8
Q

Newtons second law (acceleration)

A

The acceleration of a system depends on the mass of the system and the amount of force applied

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9
Q

∑F =

A

m*a

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10
Q

Newtons third law (Action-reaction)

A

For every action theres an equal and opposite reaction

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11
Q

Deformation

A

change in shape

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12
Q

Yield point

A

point where
deformation is permanent

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13
Q

Mechanical failure

A

loss of
continuity

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14
Q

Draw the graph for rubber band - Tendon or muscle

A

Check PP

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15
Q

Draw the graph for glass bottle - bone

A

check PP

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16
Q

Draw regular mechanical unloading

17
Q

friction

A

Force acting over area of contact between two surfaces in the
direction opposite to that of motion or motion tendency

18
Q

Static friction

A

friction between two surfaces of objects that
are not moving

19
Q

Kinetic friction

A

friction between two surfaces of objects that
are in motion

20
Q

In order to move an object, the applied force must
be greater than

A

the frictional force

21
Q

FNet =

A

FApplied + (-fk)

22
Q

Fnet also equals

23
Q

fk =

24
Q

W =

A

-N (only on leveled surface)

25
On a slope what opposes -N?
Fperpendicular
26
What is Fapplied on a slope?
Fparallel
27
Fparallel =
WCos 0
28
Fperpendicular =
Wsin 0