TASK:
When a ball is dropped from a height, it loses some of its energy and each bounce gets shorter. Your investigation will determine the effect of original drop height on bounce height. From this, energy loss can be calculated between bounces. As different groups will be using different balls, you will be able to compare energy loss with different balls. You are required to present your findings in a lab report format, which has been detailed below. The lab report must be typed.
The task to understand the reasoning for the ball drop and/or bounce. The force of the ball hitting the ground puts a force back onto the ball, causing it to bounce. Balls are made of an elastic material like rubber which rubber was designed to bounce or reflect pressure. Because the ball is
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Analysis & Discussion
Answer the following questions:
• Why did these results occur?
• Analyse the data. Are there any patterns or trends in the data?
• What is the relationship between the variables being investigated?
• Is the hypothesis supported by the data?
• Use science concepts to explain the patterns, trends or relationships identified in the data.
• Compare the results to another group: are the results of the other group the same or different? If there are differences, suggest why?
These results occurred lower than the original ball drop because the gravitational force pulled it towards the ground which leaves the first bounce lower than the drop and every bounce it gets lower until it is at a still motion on the ground because of the gravitational force. The patterns in the data is, that if there is less mass the ball will bounce higher because the gravitational potential energy is lower which allows the balls elastic energy to be used to its maximum. The hypothesis is supported by the data because when the ball was increased in height the bounce was higher. 9. Conclusion
Answer the following questions:
• Was the outcome different from the prediction?