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What factors affect the bounce of a ball?

What factors affect the bounce of a ball?. BY: Jorge Quesada. Research. Elasticity Friction Air Resistance. Hypothesis . If I drop a ball from a high point then, it well bounce higher than if dropped from a lower height. Independent and Dependent Variable. Independent Variable

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What factors affect the bounce of a ball?

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  1. What factors affect the bounce of a ball? BY: Jorge Quesada

  2. Research • Elasticity • Friction • Air • Resistance

  3. Hypothesis • If I drop a ball from a high point then, it well bounce higher than if dropped from a lower height.

  4. Independent and Dependent Variable • Independent Variable • The height • The type of ball • Dependent Variable • Speed at witch the ball falls

  5. Controlled Variable (3) • The Type of ball • Friction • Rate of fall

  6. Materials and Procedures • Materials • Foam balls • Timer (phone) • Ladder • Pen and Paper • Procedure • Position a ladder at the site of the experiment. • Drop a ball three times (one at a time) from a height of 5ft, record rate of fall. • Drop a ball three times (one at a time) from a height of 8ft, record rate of fall. • compare results

  7. Data

  8. Conclusion It turn out that my hypothesis was indeed correct, that the higher the ball fell the more time it took for it to land.

  9. Experiment 2 Does wind affect the time it takes a ball to land on the ground?

  10. Hypothesis If my research is correct, I think that wind will affect the landing time of a ball.

  11. Independent and dependent variable • Independent variable • Speed of wind (high, low, medium) • The ball • Dependent variable • Speed the ball falls

  12. Controlled variables • Air friction • Rate of fall • Type of ball

  13. Materials and procedures • Materials • Ball • fan • Procedures • Place a fan in the mid point of the ball’s falling distance. • Drop ball from 6 ft on low(fan speeds), then medium , and high. Repeat 3 times. • Record time of fall and average.

  14. Data

  15. conclusion It turns out that the speed of the fan did affect the time it took the ball to hit the ground.

  16. Experiment 3 Does height affect the elasticity of a ball?

  17. Hypothesis I think it does have a effect on the ball elasticity in the height the ball is dropped

  18. Independent and dependent variable • Independent variable • Foam ball • The height the ball is dropped from • Dependent variable • The height the ball jumps back up in inches

  19. Controlled variable • Type of ball • Elasticity • The height the ball is dropped

  20. Materials and procedures • Materials • Foam ball • Measuring tape • Procedures • One person stands in place • Ball is dropped from 3, 4 and 5 feet high • Record bounce distance of the ball in inches

  21. Data

  22. Conclusion The elasticity of the ball was affect to the height the ball was dropped.

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