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Investigatory project

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  • 1. GENERAL TO DETERMINE WHICH SURFACE GIVES THE BALL TO BOUNCE HIGHER AND WHY DOES IT BOUNCE. SPECIFIC -WHY DO BALLS BOUNCE BACK? -WHY DO SURFACES GIVES DIFFERENT HEIGHT ON THE BALLS BOUNCE?

2. SIGNIFICANCE OF THE STUDYThe significance of the study is to know more about balls, bouncing and energy. It involves physics and it gives more information about POTENTIAL ENERGY,KINETIC ENERGY and many more, it also give us more ideas why ball games that need bouncing has different surfaces, such as basketballs on cemented floors, pingpong games on flat woods and soccer games on grassland. 3. In this kind of investigation, we can only use balls that have the potential to bounce. And for the surfaces, it should be a surface that a ball can bounce on. Sand and Water are not allowed in this kind of Investigatory Project. 4. Balls, these are spherical bodies. For kids, these are round or have a shape of circle, mathematically speaking, Balls are the space inside a sphere, and it may be either a closed ball or an open ball. Balls were created for games, so ball games were created. Different sports require different balls; the size and the materials in making a ball matter a great deal, and a lot of scientific research goes into developing the right bounce for the right ball. Bounce is the ability or skill of the ball. 5. Research DesignWOODfloortextbookMaterials The materials we used for our investigatory project are one (1) tennis ball, meter stick and surfaces which are the wood, floor (cemented) and textbook. 6. Procedures The first thing we did is to prepare all the materials needed. After the preparation, we measured 50 cm from the different surfaces up to the height where We will drop the ball or release the ball. Afterwards, we prepared the ball to the height where we measured which is 50 cm away from the surface and then we dropped it to the different surfaces, the first surface was wood, then floor and lastly, textbook. After dropping the ball, we measured the height of bounce and then we dropped it again and again until 5 trials and then we identified which surface gives the ball to bounce higher through the measurements we have gathered. 7. PROCEDURAL DESIGN PROCEDURESPrepare all the materials Determine which surface gives the ball to bounce higherMeasure the height where the ball will be drop or release. Measure the balls bounce, do this 5 times/5 trialsPrepare the ball or hold the ball to the place where it will drop. Gently drop the ball to different surfaces consecutively 8. PICTURESMe and my partner, dropping and observing the ballThe balls bounce on the wood.Ready to drop the ball 9. The ball with the bookBall that is placed on the floorMy partner, taking down records 10. Lay- out Data in Tabular FormTRIALSWOODFLOORTEXTBOOK1st27 cm27 cm22 cm2nd24 cm28 cm20 cm3rd22 cm29.5 cm23 cm4th28.5 cm26 cm21 cm5th27 cm26 cm22 cm 11. Data Gathering The data we gathered matched our hypothesis which is the balls bounce will be affected, if youll drop it on different surfaces. Because in our observation, the height to which a ball will bounce depends on the height from where it will drop, what the ball is made of and what the surface it bounces from is made of.