Biomechanics

Question 1

what is biomechanics

Answer 1

the study of the effets & controls of forces that act on and are produced by human body

Question 2

what are 2 applications of biomechanics

Answer 2

-injury prevention & sports rehabilitation
-improve performances and fitness

Question 3

newtons 1st law

Answer 3

inertia
-an object in constant motion/rest will stay at that state until another force is acted upon it

Question 4

newtons 2nd law

Answer 4

acceleration

Force=mass x acceleration

Question 5

newtons 3rd law

Answer 5

reaction
-for every action there is an equal and opposite reaction

Question 6

what is a fulcrum

Answer 6

axis of rotation

Question 7

what is effort

Answer 7

where force is applied

Question 8

1st class lever

Answer 8

fulcrum in middle

Question 9

2nd class lever & feature

Answer 9

resistance in middle
-requires less effort to lift heavy loads

Question 10

3rd class lever & feature

Answer 10

effort in middle
-poor mechanical advantage

Question 11

what feature of a lever gives a mechanical advantage

Answer 11

longer effort arm

Question 12

what feature of a lever gives a speed advantage

Answer 12

effort arm shorter

Question 13

law of levers

Answer 13

Load x load arm
=
effort x effort arm