New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Lecture 1 Notes

by: Jennifer Nguyen
Jennifer Nguyen

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes are going to be on our first exam.
John Dewitt
Class Notes
Force, Biomechanics, kinematics, kinetics
25 ?




Popular in Biomechanics

Popular in Health Sport And Exercise Science

This 2 page Class Notes was uploaded by Jennifer Nguyen on Wednesday August 31, 2016. The Class Notes belongs to HLTH 4302 at University of Houston Clear Lake taught by John Dewitt in Fall 2016. Since its upload, it has received 9 views. For similar materials see Biomechanics in Health Sport And Exercise Science at University of Houston Clear Lake.

Similar to HLTH 4302 at UHCL

Popular in Health Sport And Exercise Science


Reviews for Lecture 1 Notes


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 08/31/16
Biomechanics 4302 – Fall, 2015 Note sheet – Lecture 1 Introduction ● Biomechanics is defined as the study of forces and movement on living systems. ● The study of time, space, and position of an object is called kinematics. ● The study of the force, moment, and energy associated with an object is called kinetics. ● Common variables associated with kinematics include speed, position, velocity, general motion, and acceleration. ● Common variables associated with kinetics include torque, force, and energy. ● Three basic dimensions that we measure in biomechanics are length, time, and mass/inertia. ● Mass is different than weight because of the unit of measurement (kg vs lb.) and weight takes gravity (which is really acceleration) into account. Mass is a measure of inertia, a property of an object, which stays constant. Inertia is how much an object will resist movement. Weight is a force and is not constant. ● Although these dimensions can be measured in the English System, the system of measurement necessary for many formulas is the metric system. ● Conversion from one unit to another is completed with a scaling factor. Chapter 1 – Forces ● A force is defined as a push or a pull. ● A force applied to an object causes something to change speed (velocity). ● The unit for force is newton (N). ● Force is a vector because it has a direction and a magnitude ● There are two types of forces: o Internal: can come from muscles, bones on bones, tendons/ligaments. o External: can come from the environment, friction, and gravity. ● Gravity is defined as an acceleration (downward force) ● The gravitational constant is 9.81 m/s   2 ● Gravity’s units are m/s    , which makes it an acceleration ● Contact forces is the force between two forces that are touching each other. Also known as the reaction force. ● The definition of friction is a resistance that opposes motion. ● There are two types of friction o Static: an object is not moving over a surface o Dynamic: where one surface is moving relative to the other ● Friction (is / is not) affected by contact area ● The equation for static friction is Fs= μsR ● The equation for dynamic friction is  Fd= μdR ● Friction always opposes movement ● Forces with the same line of action are collinear forces. ● Forces acting through the same point are concurrent forces. ● A free body diagram displays all the forces acting on the object. ● The Pythagorean Theorem is a   + b   = c 2 ● SOH – CAH – TOA is sin(opp/adj) – cos(adj/hyp) – tan (opp/adj) ● Many forces acting on a point can be combined into a single force called a resultant force ● Non-collinear forces must be broken into their components before adding and subtracting ● Static equilibrium is where the sum of all the forces equal zero. (where you are not accelerating)


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Anthony Lee UC Santa Barbara

"I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.