Physical Education Flashcards

1
Q

What is biomechanics?

A

The study of: the function and motion of how the body moves and functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why do athletes need to know biomechanics?

A

If they know how their body works they can optimise their performance and see what needs improving with their technique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is flexion?

A

Bring out (joint angle decreasing)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is extension?

A

Bring in (joint angle increasing)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is dorsflexion?

A

Foot going upwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is plantarflexion?

A

Foot going down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is functional anatomy?

A

How the anatomy of the body functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is inversion?

A

When you roll your ankle

Outside of foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is eccentric?

A

Movement outwards (down)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is eversion?

A

Roll your ankle inside your foot

Inside of foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is isometric?

A

Muscles flexed but no movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is some examples of internal forces?

A

The heart beating

The lungs pumping

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is external force?

A

Forced added from outside the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is an example of external force?

A

Air resistance, friction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is abduction?

A

Moving away from the midpoint of the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is adduction?

A

Moving towards the midpoint of the body

17
Q

What is concentric?

A

Contracting muscles (going in)

18
Q

What is the first law of motion?

A

The law of inertia

It stays still unless force is added externally

19
Q

What is the second law of motion?

A

The law of acceleration

Acceleration = mass and force

20
Q

What is the third law of motion?

A

The law of reaction

For every action there is a equal and opposite reaction

21
Q

What is drag force?

A

A force generated by air or water in the opposite direction

22
Q

Define speed

A

How fast something is moving

23
Q

What is velocity?

A

How fast something covers a distance in a certain direction

DIRECTION

24
Q

Explain acceleration

A

How quick the velocity changes over time

25
Q

Tell me about displacement

A

How much something moves from the original postition

26
Q

What do you think distance is all about?

A

The length between two spaces

27
Q

How do you find the momentum?

A

The velocity and mass of the object

28
Q

What happens if you tilt your hand upwards while going forwards

A

The pressure builds up underneath and forces the object upwards

29
Q

What is Bernoulli’s principle?

A

There is pressure on either side of the object and the pressure decreases with speed

30
Q

What must every lever have?

A

A force, load and fulcrum

31
Q

What type of lever is moving to the tips of your toes?

A

Second class

Fulcrum, load then effort

32
Q

What lever is used when you bring your arm up?

A

Third class lever

Fulcrum, force then load

33
Q

What is the first class lever?

A

Load, fulcrum then effort

34
Q

What is a second class lever?

A

Fulcrum, load then effort

35
Q

What is a third class lever?

A

Fulcrum, effort then load

36
Q

Why do we need functional anatomy?

A

To get our technique better.

If we understand what we are doing wrong them we can improve it

37
Q

What is summation of force?

A

When all of the body parts work in time together to create optimal performance