BIOMECHANICS 8

Question 1

What are the two main functions of levers?

Answer 1

• generate muscular effort to overcome a given load (push/pull)
• to increase speed of a given movement

Question 2

What are the FOUR COMPONENTS of a simple lever system?

Answer 2

Lever
Fulcrum
Effort
Load

Question 3

What order do the components of a lever go in a FIRST CLASS LEVER?

Answer 3

E-F-L

‘See saw’

Question 4

What order do the components of a lever go in a SECOND CLASS LEVER?

Answer 4

E-L-F

‘Wheelbarrow’

Question 5

What order do the components of a lever go in a THIRD CLASS LEVER?

Answer 5

L-E-F

Bicep Curl

Question 6

Name two first class levers in the human body?

Answer 6

Neck

Triceps Extension

Question 7

Name one second class lever in the human body?

Answer 7

Tip toes

Question 8

Name five third class levers in the human body?

Answer 8

Bicep Curl
Shoulder
Lift Toes
Hip
Knee

Question 9

What does
1 - 2 - 3
F - L - E
stand for?

Answer 9

1 - 2 - 3 = the class of lever 
F - L - E = whatever is in the middle of the lever 

e.g. A third class lever has the effort in the middle

Question 10

The ______ and __________ from the lever from the fulcrum is important.

Answer 10

Order

Distance

Question 11

Distance from the _______ to the ________ effort = _________ arm

Answer 11

Fulcrum
Effort
effort

Question 12

Distance from the ____ to the ________ = ______ arm.

Answer 12

Load
Fulcrum
Load

Question 13

The _________ the distance of the load or effort from the _______ = the more significant it become

Answer 13

Greater

Fulcrum

Question 14

Longer levers generate __________!!!

Answer 14

More force