The Effect of The Impact On The Weight of A Ball To A Surface

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this experiment throws a ball's with diffrent weight directly downwards to a box full of sand. As the weight of the ball increases, the size of the impact crater changes, assuming the ball is always dropped from the same height as measured from the top of the sand box to the bottom of the ball. The reason behind this experiment is to determine the relationship between the mass of the ball to size of the impact it made on the sand. The size of the impact is the dependent variable, the mass of the ball is the independent variable, and the control variable is the height at which the ball is dropped. Other controlled variables include the the surface of the sand.the experiment is limited to the depth of the sand box which is only 4 inches. Materials used in the experiment: * 5 Tennis ball * Meter stick * duck tape * Balance * Sand * Box * Knife * Black marker Method: 1. Take the tennis ball and weigh it by placing it on the scale 2. Grab the tennis ball and cut it it open by making a small circle on top 3. through the circle just made pour in some sand until the ball weighs .1 pounds confirm this by weighing the ball on the scale used in step one. 4. cover the whole by placing one layer of duck tape over it and ensuring that no sand comes outb of it. 5. repeat step 2, at step 3 add .2 pounds and proceed to step 4 6. repeat step 2, at step 3 add .3 pounds and proceed to step 4 7. repeat step 2, at step 3 add .4 pounds and proceed to step 4 8. repeat step 2, at step 3 add .5 pounds and proceed to step 4 9. at this point you should have 5 tennis balls each one with a diffrent weights of .1lbs, .2lbs, .3lbs, .4lbs,and .5lbs grab the black marker and lable each one respectivly from lowest weight being 1 to the heighst weight being 5... ... middle of paper ... ...the best fit line graph then we can safely say that there is an increase of ...... with an uncerainty of + 0.....cm evaluation my best straight line revealed an uncertainty of an estamet of ....%, the range including the origin. problems and possible was to improve the experiment where using an ordinary ruler to record the depth of the crater. perhaps a more advanced tool for mesuring this such as a laser could of improved results. furthermore in some of the tennis balls the duck tape used to cover the hole where the sand was pour in made the balls shape deformed causing the crater to be deformed as well. finally a simple platform could have been formed at the .5 meter height which would of taken more time but would of garanteed the same height everytime the ball was released would had eliminated that error margin of not always releasing the ball at the same height.

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