PEP 294: Review

Test #2

Segment 1

Kinematics vs. kinetics.
Three main themes of biomechanics

Anatomical reference position.
Directional terms.
Anatomical planes & axes -- major joint motions.
Linear motion (translation): rectilinear & curvilinear. Angular motion (rotation). General motion.

Mass. Force. Properties of force. Pressure.
Mechanical stress vs. strain.

Main bones in our body.
Three major material constituents of bone. Their main properties.
Bone classification based on shape.
Wolff's Law.

Symphysis -- typical examples.
Types of synovial joints and examples. DOFs.
Main joints in our body and joint types.
Joint Stability - strengthening. Joint flexibility - stretching.

Concentric contraction vs. eccentric contraction..
Agonist vs antagonist.
Motor unit.
SO, FOG & FG fiber types.
Force (tension)-length, Force-velocity relationships.
Muscular strength, power and endurance.

Trigonometry and Vector Algebra (Appendix B, pp. 76-81)

- Related Problems: IP4, 5, AP2, 3, 4, 5 in chapter 10

- Lab #3

What is Pythagorean Theorem and how do we use it?
What are the three trig. functions used most frequently? Definitions?
How do you compute angles from trig values?

What is vector and what is scalar? How are they different?
What are the properties of a vector? How do you draw a vector arrow?
What is the Tip-to-Tail method and where do we use it?
What is vector resolution and which trigonometric functions do we use for it and how?
What are the vector components?
What is vector composition? How do we use the components to compose a vector?
The component approach of vector addition? How do we use it?

Linear Kinematics

Related Problems: IP1, 2, 3, AP6 in chapter 10

Lab #5

What is position? Unit?
Definitions of displacement and distance? What are the differences between them?
Definitions of velocity and speed? Differences? If v = 0, what does this mean?
What is the alternative way of computing velocity in cyclic movements?
What is acceleration? How do you compute acceleration? If a = 0, what does this mean? What change in velocity causes an acceleration?
Units of the kinematic quantities?

Related Problems: IP6, 7, 8, 9, 10, AP7, 8, 9, 10 in chapter 10

Lab #6

What is a projectile? What are the quantities of interest of projectile motion in different sports?
Why a projectile follows a parabolic path in the air? What is the role of gravity in projectile motion?
How does the air resistance affect the trajectory of a projectile? Why do we ignore air friction in projectile motion problems?
What are the initial conditions of the projectile motion that determine the trajectory?
What are the strategies to analyze the projectile motion?
Why do we treat the horizontal motion and the vertical motion separately?
Which initial condition factor determines the ascending time (T) and the height of apex (H)?

Angular Kinematics

What is radian? How big is one radian?
Relationship between radian and degree?

Related Problems: IP1, 2, 3, 4, 5, 7, AP7 in chapter 11

What is the angular position? Unit? Positive and negative directions?
What is angular displacement?
Angular velocity? If angular velocity = 0, what does it mean?
Definition of angular acceleration? If angular acceleration = 0, what does it mean?

Related Problems: IP10, AP1, 2, 3, 4, 8, 9, 10 in chapter 11

What is the relationship between the angular velocity of an object and the linear velocity of a point on the object?
To increase the linear velocity of a point on a rotating object what should we do?
How do you describe the direction of the linear velocity? What lesson do we learn from the fight between David and Goliath?