PPT-Review: motion with constant acceleration

a 0 case no acceleration velocity is constant v v i position vs time x f x i v t x i is the starting position x f is the ending position acceleration a constant. What Is Motion?. Motion. is when an object changes place or position. To properly describe motion, you need to use the following:. Start and end position?. Movement relative to what?. How far did it go?. Motion at Constant Acceleration . Giancoli. , Sec 2- 5, 6, 8. © 2006, B.J. . Lieb. t (s) . v ( m/s). a ( m/ s. 2. ) . 0. 0. 15. 1. 15. 15. 2. 30. 15. 3. 45. 15. 4. 60. 15. 5. 75. 15. Example 3-1. Consider . Chapter 3. Layout of Chapter . Diagrams. How to read and represent data. Introduction to Diagrams. Throughout the course, there will be a persistent appeal to your ability to represent physical concepts in a visual manner. You will quickly notice that this effort to provide visual representation of physical concepts permeates class discussions and activities. 5.1 . Uniform Circular Motion. DEFINITION OF UNIFORM CIRCULAR MOTION. Uniform circular motion is the motion of an object . traveling at a constant speed on a circular path.. 5.1 . Uniform Circular Motion. Kinematics (. الحركيات. ): . A . branch (. فرع. ,. شعبة. ) . of . mechanics (. علم الميكانيكا. ) . in which we study motion of an object without knowing its . cause (. سبب. a = 0 . case. no . acceleration  velocity is constant  v = . v. i. position . vs. time  . x. f. . = x . i. . + . v . t,. . x. i. . is the starting . position. acceleration = a = constant. Use the units of mass, length, and time.. Define displacement, velocity, and acceleration.. Use the units of displacement, velocity, and acceleration.. Measure velocity and acceleration.. Use distance-time and velocity-time graphs.. 1. Changing Units. Speed of a car is 80 miles/hour. What is it in m/s. Multiply by 1 so units cancel and correct units are left. In units of m/s: {80 miles * (5280 feet/mile)*(1 m/3.28 feet)}/hour. . Motion. Speed & Velocity. Acceleration. Newton’s First Law. Newton’s First Law of Motion. An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force.. Acceleration is a change in velocity. Speed or direction. Centripetal Acceleration. Acceleration can mean a change in direction, not just speed. Centripetal acceleration. Acceleration that occurs in a circular motion. What Is Motion?. Motion. is when an object changes place or position. To properly describe motion, you need to use the following:. Start and end position?. Movement relative to what?. How far did it go?. V. ector quantity: . magnitude (value) & direction. R. ate . at which an object changes its velocity. . “. How fast an object is getting faster”. If the velocity of an object is changing, it is accelerating!. Describing motion is occasionally difficult to do with words. Graphs can help simplify this description greatly. Position = Distance from a starting point. Velocity = rate of change in position. Acceleration = rate of change in velocity. 3.2. 3.2 Acceleration. Think about a car at a stop light. When the light turns green, the car starts moving and the car’s velocity increased. The car began accelerating. Acceleration is the change in velocity divided by the time it took the change to occur.