BOUNCY BALL EXPERIMENT

PROBLEM

• Which bouncy ball will bounce higher when there are small changes in size?

HYPOTHESIS

• If we increase the size of a bouncy ball then bounce will increase as well.

MATERIALS

• 1 2cm red bouncy ball
• 1 2.7 cm dark green bouncy ball
• 1 2.9 cm light green bouncy ball
• 1 meter stick
• 1 iPad

PROCEDURE

• 1.) Drop all bouncy balls from the same heights and use the same force (none).
• 2.) Test all bouncy balls again using the same procedure as trial one.
• 3.) Test all again following previous procedure.
• 4.) Follow the same procedure while testing all bouncy balls one last time.

PROCEDURE TABLE

TABLE INFORMATION

• I.V. Bouncy ball
• D.V. Height
• Control group: NONE
• Constants: Height, Force applied, Steady ground

BOUNCY BALL AVERAGE HEIGHT

CONCLUSION PART 1: WAS THE HYPOTHESIS SUPPORTED

• No, the hypothesis was not supported. This was due to the fact that we thought that a bigger ball would create a higher bounce. The real result was that the smaller the ball created a higher bounce.

CONCLUSION PART 2: FLAWS

• One main flaw in our experiment was that we did not have a control group. This was because due to the fact that you cannot control the height of the bounce for each ball.

CONCLUSION PART 3: IMPROVEMENTS

• Next time we can improve the experiment by adding in more trials and more bouncy balls to get more varied results.

RESULT

• Our result was that the smaller bouncy ball created the highest bounce.

TRIAL 1 PHOTOS

TRIAL 3

TRIAL 2

TIRAL 4