C1: T2 - movement analysis

Question 1

define axis

Answer 1

an imaginary line around which a body or body part can turn

Question 2

define plane

Answer 2

an imaginary line dividing the body in 2

Question 3

what is the FRONTal plane?

Answer 3

FRONT to back

Question 4

what is the TRansverse plane?

Answer 4

TRouser line

Question 5

what is the Sagittal plane?

Answer 5

Sides (left to right)

Question 6

where does the sagittal axes pass through?

Answer 6

passes through the body from front to back

Question 7

where does the vertical axes pass through?

Answer 7

passes through the body from top to bottom

Question 8

where does the frontal axes pass through?

Answer 8

passes through the body horizontally

Question 9

what movement does the frontal plane and sagittal axis allow?

Answer 9

a cartwheel/ sideways movement

Question 10

what movement does the sagittal plane and frontal axis allow?

Answer 10

a somersault/ forwards backwards movement

Question 11

what movement does the transverse plane and vertical axis?

Answer 11

a full twist/ a rottating movement

Question 12

define levers

Answer 12

a rigid bar or object that moves around a fixed fulcrum with two forces applied to it

Question 13

define class of lever

Answer 13

the type of lever. there are first class, second class, and third class levers.

Question 14

define fulcrum

Answer 14

a fixed pivot point e.g. joints

Question 15

define effort

Answer 15

the source of energy that will do the work e.g muscles

Question 16

define load

Answer 16

the weight/resistance to be moved e.g a body part plus anything held or resistance met

Question 17

for each class of lever state where the fulcrum is found

Answer 17

1 - middle
2 - left
3 - right

Question 18

for each class of lever state where the load is found

Answer 18

1 - left
2 - middle
3 - left

Question 19

for each class of lever state where the effort is found and which way the arrow is pointing

Answer 19

1 - right (down)
2 - right (up)
3 - middle (up)

Question 20

what is the load arm?

Answer 20

the distance from the load to the fulcrum

Question 21

what is the effort arm?

Answer 21

the distance from the the effort to the fulcrum

Question 22

physical examples of 1st class levers:
when rowing state what would be the load, effort and fulcrum

Answer 22

rowing:
load - water
fulcrum - top of the oar
effort - biceps

Question 23

physical examples of 1st class levers:
when doing a tricep dip, what would be the load, effort and fulcrum?

Answer 23

tricep dip:
load - body weight through the hands
fulcrum - elbow
effort - tricep

Question 24

physical examples of 1st class levers
when nodding your head, state the load, effort and fulcrum

Answer 24

nodding head:
load - weight of the head through the chin
fulcrum - the joint of the top of the neck
effort - the muscles at the bottom of the neck

Question 25

physical examples of 2nd class levers:
for a calf raise state the load, effort, and fulcrum

Answer 25

calf raise:
effort - gastrocnemius
load - weight of body through the centre of the feet
fulcrum - balls of feet

Question 26

physical examples of 3rd class levers:
for a bicep curl state the effort, load and fulcrum

Answer 26

bicep curl:
load - dumbbell
effort - bicep
fulcrum - elbow

Question 27

physical examples of 3rd class levers:
for kicking a ball state the effort, load and fulcrum

Answer 27

kicking a ball:
load - ball
effort - quadriceps
fulcrum - knee

Question 28

how do you work out mechanical advantage

Answer 28

effort arm / load arm

Question 29

true or false?
a third class lever always has a mechanical disadvantage

Answer 29

true because the effort arm is much closer to the fulcrum then the load arm

Question 30

define mechanical advantage

Answer 30

a large load can be lifted with relatively little effort due to the effort ‘arm’ being long

Question 31

define mechanical disadvantage

Answer 31

cannot lift as heavy a load with the same amount of effort due to the effort ‘arm’ being short

Question 32

do 1st class levers have a mechanical advantage or disadvantage

Answer 32

mechanical advantage

Question 33

do 2nd class levers have a mechanical advantage or disadvantage

Answer 33

mechanical advantage

Question 34

do 3rd class levers have a mechanical advantage or disadvantage

Answer 34

mechanical disadvantage

Question 35

give a none body example of a 1st class lever

Answer 35

see saw

Question 36

give a none body example of a 2nd class lever

Answer 36

wheel barrow

Question 37

give a none body example for a 3rd class lever

Answer 37

fishing