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# Acceleration

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### Acceleration

1. 1. By: Pooja Acceleration
2. 2. Acceleration Facts <ul><li>Acceleration is the change in speed and directions (velocity) </li></ul><ul><li>Constant acceleration is acceleration that doesn’t change with time </li></ul><ul><li>Galileo was the first to show that all objects fall to earth with constant acceleration. </li></ul><ul><li>In order to produce an acceleration, a force must be applied to the object. </li></ul>
3. 3. Acceleration Examples <ul><li>One is when you are running and change speed or direction </li></ul><ul><li>Another one is when a bike is going up hill changing speed and direction </li></ul>
4. 4. Examples of Acceleration <ul><li>The car is moving (duh!) at a certain velocity and when it changes speed or direction it is changing acceleration </li></ul>
5. 5. Acceleration Examples <ul><li>Your horse when it is jumping it would move in to a canter from a trot </li></ul><ul><li>When a motorcycle is going full speed and then it encounters a stoplight! Yikes! </li></ul>
6. 6. Acceleration Example <ul><li>The cart accelerating! </li></ul><ul><li>Example of an example when it goes up it is slow and when it goes down it is fast </li></ul>
7. 7. Acceleration Examples <ul><li>The helicopter is (hopefully) changing speed and direction </li></ul>
8. 8. Acceleration Example <ul><li>This one is by far my favorite </li></ul><ul><li>Michelle Kwan is changing speeds as she lifts her leg </li></ul>
9. 9. Click the screen for information on my project
10. 10. Experiment <ul><li>My dad took me to my local ice skating arena </li></ul><ul><li>My experiment was fun even though their were a lot of people </li></ul><ul><li>Click the screen to see how I did </li></ul>
11. 11. Procedure Question: How much acceleration does it take to jump 5 inches of the ground? <ul><li>First I went to the ice skating arena! </li></ul><ul><li>Then I did my jumps in different speeds to see what speed takes me 5 inches of the ice </li></ul><ul><li>I got my dad to measure time. The distance was measured by a ice skating teacher </li></ul>
12. 13. My Results <ul><li>Going 0.5 feet per second was hard and put a lot of pressure on my ankles but it took me 5inches of the ground </li></ul><ul><li>Going 0.25 was easy for me but it only took me 3 inches off the ground </li></ul>
13. 14. Thanks for Watching
14. 15. Resources <ul><li>http://www.east-buc.k12.ia.us/03_04/CE1/LSAS/lsas1.htm </li></ul><ul><li>www. wikipedia .org </li></ul>