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Introduction To Biomechanics > Lectures 1-4 > Flashcards

Lectures 1-4 Flashcards

1
Q

Definition of biomechanics

A

The study of the mechanical laws relating to the movement or structure of living organisms

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2
Q

What are the three planes of motion? And how do they divide the body?

A

Sagittal (left and right)
Transverse (superior and inferior)
Frontal (front and back)

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3
Q

What are the three axes of rotation?

A

Longitudinal axis
Transverse axis
Frontal axis

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4
Q

How many mm in a cm?

A

10mm = 1cm

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5
Q

How many mm in a metre?

A

1000mm = 1m

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6
Q

How many metres are in a mile?

A

1600

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7
Q

How do you convert units? (Look at page 4, lecture 2 to make more sense of it)

A

Example:

Work out how many of X go into Y, then times Y by that amount.
Do that for both bits of the equation

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8
Q

Definition of distance

A

The total ground covered between two points

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9
Q

Definition of displacement

A

It is the shortest straight line route from the starting position to the final position

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10
Q

Definition of speed

A

It is the distance traveled per unit of time

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11
Q

Definition of acceleration

A

It is the rate of change of velocity per unit of time

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12
Q

What is the equation for speed?

A

Speed = distance/time

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13
Q

What is the equation for pace?

A

Pace = time/distance

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14
Q

What is the equation for velocity?

A

Velocity = displacement/time

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15
Q

What is the equation for acceleration?

A

Acceleration = change in velocity / change in time

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16
Q

Terms for displacement

A

/_\S or S or d

17
Q

Terms for initial velocity

A

Vi (small i)
Or
U

18
Q

Terms for final velocity

A

Vf (small f)
Or
V

19
Q

Terms for acceleration

A

a

20
Q

Term for /_\time

A

t

21
Q

What does /_\ (triangle) mean?

A

A change in something

22
Q

Definition of gravity?

A

Gravity is a force that attracts two masses together

23
Q

What is the gravitational pull of the earth?

A

9.8m/s2

That’s 9.8 metres per second squared

If something is travelling towards the earth then it is negative

24
Q

What is the velocity of an object an the apex?

A

The vertical velocity is 0

25
Q

What do you use to find the Y (vertical) component in trigonometry? (Look at slide 17, lecture 4 to explain, may have the recap this lecture)

A

Sin

26
Q

What is the equation for Sin?

A

Sin(60degrees) = opposite/hypotenuse

27
Q

What trigonometry do you use to find the x (horizontal component)

A

Cos(60degrees) = adjacent/hypotenuse

28
Q

What is the equation to work out the tangent (tan) in SOHCAHTOA?

A

Tangent = opposite/adjacent

29
Q

Do all maths sheets

A

Lectures 1-4

Introduction To Biomechanics (4 decks)

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