WorksheetsBiomechanics
Total questions: 20
Worksheet time: 11mins
Define biomechanics
your body posture
how the body works with machines
forces and motions applied to the structure and function of the human body
when a mechanic works on your body
What are the laws of motion?
Law of Inertia
Law of Acceleration
Law of Action and Reaction
Law of Attraction
What force does this photo represent?
Parallel
Linear
Concurrent
Resultant
What force does this muscle exert?
Force Couple
Parallel
Linear
Concurrent
What muscles upwardly rotate the scapula?
Serratus anterior, upper trap, lower trap
levator scap, rhomboids, pec minor
levator scap, upper trap, lats
Serratus anterior, upper trap, pec minor
Two or more forces acting in DIFFERENT directions to facilitate a rotation is what?
Lever Arm
Torque
Force Couple
Angular Force
The perpendicular distance between the force’s line of pull to the axis of rotation is what?
Moment Arm
Lever Arm
Stabilizing Force
Dislocating Force
Torque is greatest when the angle of pull is at (a)
Dislocating Force is a torque that tends to pull a joint apart or destabilizes it
occurs with angles _____?
< 80°
< 90°
> 90°
> 75°
First class levers favor?
ROM
Power
Balance
Deceleration
What is an example of a second class lever in the body?
heel raises
bicep curl
head stands
nodding your head
How can you improve stability?
Increase fricition
Focus on a stationary object
Increase center of gravity
Increase mass
What is an example of the Law of Inertia?
Doing a jumping jack
Sitting in a chair
Doing a jumping jack
Kicking a ball
What is an example of the Law of Acceleration?
Shooting a basketball
Laying down
Doing crunches
Swimming
What is an example of the Law of Action and Reaction?
Slapping Jake (because he won't slap you back)
Jumping on a trampoline
Ball falling off a table
A model rocket
What is static movement?
Factors when you run
Factors associated with moving systems
Factors associated with drinking a Capri Sun on a hot summer day
Factors associated with non-moving systems
What does this picture represent?
Linear
Parallel
Concurrent
Resultant
Define concurrent forces
occur in the same plane and in the same or opposite direction
two or more forces acting along the same line
is the overall effect of these forces; dependent on angles of pull and magnitude
two or more forces
applied to the same point but pulling or pushing in different directions;
Can a lever class change
Yes
No
Maybe
Only if Stephanie says so
What type of lever does this represent?
Class I
Class II
Class III
