PPT-Acceleration Video SWBAT explain how changes in velocity and time affect the acceleration

Acceleration is a measure of the change in velocity per unit of time When the velocity of an object is changing it is accelerating Negative acceleration slowing down Positive acceleration . Measures How Fast . Velocity . Changes. Motion and Forces Unit Chapter 1 Section . 3. 1. Speed and Acceleration Can Change with Time. Acceleration. 1. Speed and Acceleration Can Change with Time (answers). ACT/PSAE practice. Intro to acceleration. What does it mean in common language?. What does it mean to a physicist? (That’s you!). First equation of acceleration. A = v/t. Standard unit for acceleration: m/s^2. 2.7 m/s. 2. While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile’s acceleration? (Remember that a negative value indicates a slowing down or deceleration.) . Describe the speedometer on a car that is entering a highway, drives for 25 miles and then exits the highway.. Consider the two situations below. When a shuttle bus approaches a stop, the driver begins to apply the brakes to slow down 5.0 s before actually reaching the stop. The speed changes from 9.0 m/s to 0 m/s over time.. Bell Ringer 11-7-13. Compare and Contrast Speed, Velocity and Acceleration. is the speed of an object in a particular direction. MYP Unit Question: What Moves YOU!!. Area of Interaction: Human Ingenuity. Velocity and acceleration Measuring an objects motion speed Speed is calculated by dividing distance by time S = d/t 5.0 km/h 2.5 m/s 45 mph velocity Velocity is the same as speed, but you tell the direction of motion in the answer. 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. 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!. Displacement, Velocity, and Acceleration are the three vector quantities that describe the motion of any object during a specified time interval.. Vectors – Quantities that have . magnitude . and direction.. What is acceleration?. If you’re traveling in a car at a constant speed of 50 mph, are you accelerating?. No, you’re not. . Acceleration is the rate of change of velocity. . Acceleration. In order for acceleration to occur, velocity MUST be . 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. Get an . Ipad. , from my website click on Acceleration web notes on today’s calendar. Answer the following questions: . What . is acceleration?. Why is acceleration a vector quantity?. What does a position vs. time graph look like when showing changing velocity?. Defination. In non-uniform motion,the velocity of a body changes with time . For example, when a train leaves or approaches the platform its velocity changes with time. The change in velocity of an object with time is given by a physical quantity known as acceleration. . Lesson . 2. Position with Constant Acceleration. The graph shows that the car’s motion is not uniform: The displacements for equal time intervals on the graph get larger and larger.. The slope of a position-time graph of a car moving with a constant acceleration gets steeper as time goes on..