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Acceleration Chapter 1, Section 3 Page 22 - 27.

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Presentation on theme: "Acceleration Chapter 1, Section 3 Page 22 - 27."— Presentation transcript:

1 Acceleration Chapter 1, Section 3 Page

2 WHAT IS ACCELERATION? __ACCELERATION__ is the rate at which velocity changes. Velocity is __SPEED IN A GIVEN DIRECTION__ Acceleration refers to __INCREASING SPEED__. __DECREASING SPEED__, or __CHANGING DIRECION__.

3 INCREASING SPEED A car that begins to move from a __STOPPED__ position or __SPEEDS UP__.

4 Increasing speed An example of something increasing speed would be a dude about to get body slammed on the canvas! See below

5 DECREASING SPEED A car __STOPPING__ at a stop sign is called __DECELERATION__, or negative acceleration.

6 Decreasing speed An example of something decreasing speed would be a car locking up it’s brakes

7 CHANGING DIRECTION Acceleration can be a change in __DIRECTION__.
Examples: __TURNING A CORNER__ and __SWITCHING LANES__

8 Changing direction An example of something changing direction would be a loop roller coaster

9 CALCULATING ACCELERATION
Acceleration = __FINAL SPEED - INITIAL SPEED__ /__TIME__ Speed is measured in meters per second (m/s) and time is measured in seconds, the SI unit of acceleration is __METERS PER SECOND PER SECOND, or M/S2 Meters per second per second means __EVERY SECOND THE SPEED INCREASES BY THE SPEED__ Eureka! (Acceleration) (4:51)

10 GRAPHING ACCELEREATION
The 2 types of graphs that can be used are __DISTANCE–VERSUS–TIME and SPEED– VERSUS–TIME__.

11 SPEED – VERSUS – TIME GRAPH
The line slants __UPWARDS__ means your speed is increasing. __STRAIGHT LINE__ means acceleration is constant __STRAIGHT and SLANTED LINE__ mean accelerating at a constant rate. To calculate the slope, choose __ANY 2 POINTS ON THE LINE__. Then, __DIVIDE THE RISE BY THE RUN__.

12 DISTANCE – VERSUS – TIME GRAPH
A __CURVED LINE__ means that an object is accelerating. Brain Pop - Acceleration (2:51)


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