Motion Notes Speed, Velocity, and Acceleration! Motion A change in position, over time, relative to a reference point. So, Whats a Reference Point?
http://www.classzone.com/books/ml_scie nce_share/vis_sim/mfm05_pg7_relmotio n/mfm05_pg7_relmotion.html What we compare all other movement or locations to! Often
Earth Features Large Objects Cities Reference Point Scenarios Suppose you are in a train, and you cannot tell if you are stopped or moving. Outside the window, another train is slowly moving forward. What could be happening?
Your train is stopped, and the other train is moving slowly forward The other train is stopped, and your train is moving slowly backwards Both trains are moving forward, with the other train moving a little faster
Your train is moving very slowly backward, and the other train is moving slowly forward Could you be sure as to which is actually happening?? Reference Point Examples Speed Position can change at different rates
Distance an object moves in an amount of time Formulas Speed=Distance/Time Distance=Speed x Time Time= Distance/speed Velocity Suppose theres a TORNADO thats 1 mile wide, and its going 40 mph
What else is important?!?!? Its Direction! Velocity is a Speed in a Direction! 15 Mph Northwest; 200 m/s South; 40 cm/ms Left Acceleration Change in Velocity over time
Remember: Velocity is Speed AND Direction Speeding Up = Acceleration (Positive #) Slowing Down = Deceleration (Negative #) Turning (Change in Direction) = Acceleration Which of the Following Are Examples of Acceleration? A car stops at a stop light.
A car goes from 0 to 45 mph. A car races around an oval track at a constant speed. Acceleration Formula THIS IS TOUGH!!! Final Velocity Initial Velocity Time Vfinal Vinitial
T Acceleration Problem! Julio starts sliding with a velocity of 1m/s south. After 3 seconds, his velocity is 7m/s south. What is Julios acceleration? Final Velocity Initial Velocity Time 7 m/s 1 m/s 3s
6 m/s 3s 2 m/s s 2 m/s2 Practice! Review: Speed/Distance/Time Formulas: S=DT
D=TS T=DS Acceleration Formula: Final Velocity Initial Velocity Time
Practice If a runner runs 100 meters in 50 seconds, what is his speed in meters per second? How far could this runner run in 25 seconds? Calculating Acceleration
John starts running from rest. After 10 s, his velocity is 20 m/s. What is Johns rate of acceleration?
KEY quote to explain the reasons why people stuck to the theology and the laws - the fear that if they did not their communities would break down, God would abandon them and the devil would take over. This is...
(Optimal) minimum use of oxygen. Prevention of complications. ROP - Management Screening: In our NICU, all infants <34 wks gestational age AND <1800 g birthweight are screened between 4-6 weeks of age. ROP - Management CRYOTHERAPY For threshold ROP (stage...
2. VERBUM QUOD IDEM DECLARAT (sense for sense) 3. QUOD UNO GRAECI… ID PLURIBUS VERBI EXPONERE (paraphrase) " Ho . tradotto da oratore, non già da interprete di un testo con le espressioni stesse del pensiero, con gli stessi modi...
We are given the atmospheric pressure (764.7 torr) and the mercury heights in the two arms of the manometer and asked to determine the gas pressure in the flask. Recall that millimeters of mercury is a pressure unit. ... We...
Times New Roman Arial Monotype Sorts Wingdings Arial Unicode MS Serene PowerPoint Presentation Credit Topics Two Models Evaluating the Evidence Recession of the Moon Earth - Moon Distances Recession of the Moon Origin of the Moon Origin of the Moon...
CSE 250 Spring 2009 Can use either Eclipse plugin or web interface For Eclipse, make sure all the files you want to submit are in the same project For web interface, create your zip file before you go to the...
1- Excretion of metabolic wastes. 2- Regulation of mineral and water balance, pH, … 3- Release of renin that is important in ABP and blood volume regulation. 4- Release of erythropoietin hormone that stimulates RBCs formation. Functions of the kidney
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