4.3 'FUN'damentals of Biomechanics

How many classes of levers are there?

• 1

• 2

• 3

• 4

If the effort is in the middle of the lever what class is it?

• 1st

• 2nd

• 3rd

• 4th

What class of lever is shown in the picture?

• 1st

• 2nd

• 3rd

• 4th

Using Newton's formula for acceleration, how much mass does an object have if its acceleration is 80 m/s and the force applied was 24N

• 19.2 kg

• 0.3 kg

• 30 g

Standing on your toes is an example of what lever

• 1st class

• 2nd class

• 3rd class

What class lever occurs at the neck when nodding your head

• 1st class

• 2nd class

• 3rd class

You are competing in a 100m race in the pool.  Each length of the pool is 50m.  What is your displacement?

• 0m
• 50m
• 100m

In the body, the effort is the 

• muscle insertion
• muscle origin
• bone
• joint

Which order would be correct for a first class lever?

• FRE
• REF
• EFR
• FER

Which of these best defines the term 'biomechanics'?

• The machinery or working parts of something.

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

• The branch of applied mathematics dealing with motion and forces producing motion.

• The branch of science concerned with the nature and properties of matter and energy.