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KIN 151 Study Guide - Midterm Guide: Kinematics, Kinesiology, Free Body Diagram

Department
Kinesiology
Course Code
KIN 151
Professor
Paul Kennedy
Study Guide
Midterm

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1. Study Guide Notes – Kin 151
Class Study Guide One
Definitions:
Anatomy – The study of the bodily structure of humans
Biomechanics – The study of the structure and functions of biological
systems by means of the methods of mechanics
oThe Study of forces and their effects on living systems
Dynamics – A change in velocity (acceleration present), a branch in
mechanics
Ergonomics – A subfield of biomechanics, examines how we interact
with (objects in) our environment
Inertia – A resistance to change (in motion)
Kinematics – Describing motion over space and time (without getting
into the causes)
Kinesiology – The study of human movement
oExamines movement from the cellular to societal level
Kinetics – The study of forces that cause or tend to cause motion
Length – The extent of something from end to end
Mass – A substance, quantity of matter
Mechanics – Analysis of forces and their effects
Physiology – The study of how individuals acquire and develop skills
Qualitative – Measuring by the quality of something  Non-numeric
description
Quantitative – Measuring the quantity of something  numeric
description
Quantitative Reasoning – The application of mathematical concepts
and skills to solve real-world problems
Rigid Body Mechanics – Any force not breaking your body
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Statics- A branch of mechanics dealing with systems in a constant
state of motion
Time – a duration
Key Questions
1. Difference between kinesiology and biomechanics
a. Kinesiology examines movement from the cellular to societal
level (physiological and mechanical mechanisms). Biomechanics
deals with quantitative reasoning, it is the study of forces and
their effects on living systems
2. How coach might utilize biomechanics
a. Coaches use kinematics for teaching movements. They can try to
modify an athletes techniques and use kinematics to measure
learning ex. Throwing baseball
3. What technology has contributed to growth of biomechanics?
a. Cameras and pressure equipment. Etienne-Jules Marey
developed cameras that could record several phases of
movements. By the 20th century researchers could measure and
record forces and motions in a variety of activities
4. Example of something in dynamic state
a. Car speeding up
5. What do kinematic studies look at? What does kinetic research
examine?
a. Kinematic studies look at the description of motion, including
considerations of space and time. Kinetics research examines
the action of forces
6. Difference between mass and weight?
a. Mass is the actual amount of material contained in a body,
measured in Kg. Weight is the force exerted by gravity on object
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a.i. Mass is independent of everything but weight differs from
earth, moon etc.
7. Steps to solve qualitative/quantitative problems
b. List given info
c. List desired info that you will solve for
d. Draw diagram showing known/unknown
e. Write formulas that could be used
f. Identify formula to use
can be inferred
h. Substitute given info into formulas
i. Solve equation
j. Check answer is reasonable and complete
Class Study Guide Two
Definitions
Acceleration – dynamic motion characterized by a change in
velocity
Bending – A combination on compression and tension forces
Center of Gravity – point at which a systems weight is equally
distributed in all directions (masses are balanced)
Center of Mass - Also referred to as center of gravity
Compression – Squeezing force directed through the center of a
body
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