By :Gilbert Fulton

 I hypothesize that the sand will have the most affect on the dropped ball

  Independent Variable: The type of surface the ball is being dropped on Dependent Variable: The height of the ball after being dropped on the surface

     The height the ball is dropped The same ball The same conditions when I experiment The same amount of force The same metric units used

     Potential energy Elastic Friction Air resistance Gravity

9 8 7 6 5 4 3 2 1 0 Grass Sand Concrete Series 1 Series 2 Series 3

 The sand did have the most affect on the dropped ball ,so my hypothesis was correct.

By: Gilbert Fulton I hypothesize that the soccer ball will have the most affect on the dropped ball.

 I hypothesize that the soccer ball will have the most affect.

 Independent variable: The type of ball.

 Dependent variable: Does the type affect the bounce of a dropped ball.

     The height the ball is being dropped at The type of surface The same conditions while testing The same force being used The metric units used

     Potential energy Elastic Air resistance Gravity Friction

16 14 12 10 8 2 0 6 4 Plastic Ball Tennis Ball Soccer Ball Trial 1 Trial 2 Trial 3

 The soccer ball had the most affect and my hypothesis was correct.

By: Gilbert Fulton

 I hypothesize that the football will have the most affect

  Independent variable: The sizes of the ball Dependent variable: The affect of the ball being dropped

     The type of surface The height the ball is being dropped at The same metric units used The same force applied Experimenting in the same conditions

     Elastic Gravity Air resistance Friction Potential energy

2 0 6 4 14 12 10 8 Football Tennis Ball Basketball Trial 1 Trial 2 Trial 3

 The basketball had the most affect and my hypothesis was incorrect.