controlled variables in bouncing ball experiment

Problem: Hypothesis: Experiment: If the ball is elastic in nature, the ball will quickly return to its original form and spring up from the floor. Changes in the area of linoleum floor tile that the ball collided with may have affected the height to which it bounced to thus producing variation between results. Air resistance exists but does not affect the velocity of the ball significantly. These two results were excluded when averages were being calculated and therefore the average variation between results used for calculating the average was even less than 3cm. The distance in centimeters from bounce 1 to bounce 2. You may need to calculate the average of bounce height. Create and find flashcards in record time. Several balls, medium-sized super balls, hollow rubber balls, solid rubber balls, tennis balls, golf balls, baseballs, and whatever other types of balls are available. What is the force that causes a ball to bounce? So once you know how to calculate KE and GPE, it is simple to calculate their sum, E. KE of a dropped ball changes as it falls. Also it shows inaccuracies in the experiment as it shows that heights were recorded that exceeded the height that the ball would have reached had it been dropped in a vacuum. List three. Maybe you are reading a scale incorrectly, or maybe the measuring instrument is working erratically. The material ball is made from will affect the ball as if it is smooth then the drag will be significantly less than if it is rough. That height fraction is equal to the fraction of energy that the ball successfully stored and returned during its bounce. It was decided that the first drop would start at 2m off the floor and then move down in intervals of 10cm to 10 cm off the floor. The total energy of the system remains the same; the potential energy changes to kinetic energy, but no energy is lost. The procedure allowed me to observe the affects of the height from which a table tennis ball was dropped from upon the height to which it bounced. Variables are the factors that are changed, measured or controlled. These stages are continuously repeated and shown in the sequence below. Identifying variables is necessary before you can make a hypothesis. Each of the following experiments tests a different hypothesis. This would mean that one could re-examine the height to which it bounced to and find it exactly instead of having to make a split second judgement which is not half as accurate. 3. The energy chain is as follows: Therefore as energy cannot be created or destroyed the energy the ball starts with must be directly proportional to the energy the ball finishes with, at the top of its bounce, and so if the ball starts with more energy it must therefore finish with more. The results of our experiment show that this probably is not the case. his the height of the balls bounce. WebAll experimental investigations involve variables.

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