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# What Happened To The Tacoma Narrows Bridge

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### Transcript

• 1. By David Neil Daniell Gravity Trials
• 2. Explaining Gravity Trials
• I am trying to find out how gravity effects mass. What I’m going to do is compare objects with different masses. I am going to time the object when I drop it, measure the height I dropped it from, and divide distance and time.
• 3. Trial 1!
• 1 st Trial I’m going to take to take a soccer ball and drop it The height was 100 cm. The time was 1.36 seconds. The speed was 73 cm per second.
• 4. Trial 2!
• The 2 nd Trial I used a baseball and dropped it from 100cm. The time was .55 seconds. The speed was 155 cm per second.
• 5. Trial 3!
• The 3 rd Trial I am going to use a rubber ball. The height is 100cm. The time was 1.03 seconds. The speed was 116 cm per second.
• 6. Conclusion
• The bigger the mass the more gravity takes effect on the object.
• 7. This is my Flip Video! Enjoy!
• 8. My project presentation is finished! The End
• 9. Resources
• Book: Force and Motion
• www.Wikipedia.com