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# An investigation into the effect of temperature on a squash ball

Extracts from this document...

Introduction

An investigation into the effect of temperature on a squash ball For my experiment I will be using a blue spotted squash ball. This is because the blue spotted ones are designed to have the most bounciness. This is will make it a lot easier to judge the height of the ball's bounce making my experiment more accurate. I'll set up my equipment to the diagram below. Then I'll put the squash ball in a beaker and then put the beaker in a water bath. The water will obviously be heated with a Bunsen burner which will then heat the ball up. I've chosen this method so the ball doesn't get wet, and the experiment is fair. I will then drop the ball from a height of 2 meters. It will be landing onto a piece of MDF (Medium Density Fibreboard) to make sure the surface won't affect my results, so it's more of a fair test. To judge how high the ball has bounced, I will be using my eyesight. ...read more.

Middle

10 30 31 38 17.33 17 0 22 28 20 7.33 7 I have carried out my plan and have used my equipment precisely to observe and measure the rate of reaction to a good level of accuracy. I have taken a sufficient number of accurate results and have recorded them in a table. I don't need to repeat any readings as none of them look to be anomalous. I made no changes to my plan but carried out a preliminary to make sure I wouldn't have to make any changes half way through the experiment. I made sure I was wearing safety goggles while I was heating the water with a Bunsen burner to protect my eyes. I stood up throughout the experiment to lower the risk of injury. When I took the squash ball out of the beaker I used tongs so I didn't burn my hands. Analysing Evidence I've plotted my results onto a line graph and a clear pattern is seen. As the temperature of the ball is increased, the distance the ball bounces is also increased. ...read more.

Conclusion

For example, I carried out all of it. If I used machines or computers it would have been a lot more accurate. If I had the equipment to this I would have a machine drop the squash ball from an exact point and use either or video camera or light motion sensor to get the exact measurement of the bounce. This would be a lot more accurate than my own eyesight. But saying that, my results were very accurate without machines and I can see this by how I've plotted them on the graph. They were easily accurate enough to make a firm conclusion on that increasing the temperature increases the bounciness of the ball. There weren't any results that didn't fit into the main pattern. I think this is because I took great care while carrying out the experiment. There are many other experiments I could do to extend the work I've done. For example I could look at all the other factors that affect the bounciness which I mentioned in my plan. I think an interesting one would be to change the material the ball lands on, to see which material absorbs the most energy. ...read more.

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## Here's what a star student thought of this essay

4 star(s)

### Response to the question

The response to the experiment objective is done very well. The candidate carries out a good preliminary experiment and considers all the factors which may affect the experiment in a negative way and accounts for them. The candidate analyses ...

### Response to the question

The response to the experiment objective is done very well. The candidate carries out a good preliminary experiment and considers all the factors which may affect the experiment in a negative way and accounts for them. The candidate analyses and evaluates the experiment well with well set out tables and line graphs.

### Level of analysis

The candidate starts out well explaining what they are going to do in the experiment, and they show how they have considered and accounted for certain factors which might confound the experiments results which is good. The candidate also includes a diagram, but does not include a solid bullet pointed method which would have been good to show how to exactly do each step of the experiment. The candidate does not make a prediction and also does not back up how temperature would affect the ball with scientific evidence beforehand which would show better scientific understanding of the principles governing the reason behind the experiment. The candidate does consider principles governing the experiment at a later date which shows good understanding of atoms and gravity, but this should be interspersed earlier in the experiment so the text flows better. The results include a well presented table and graph which is good to show deeper analysis of the results. The analysis and evaluation are very well done.

### Quality of writing

Punctuation, grammar and spelling all okay. Format of the essay is also done to an acceptable format and is clear and easy to follow.

Reviewed by skatealexia 07/08/2012

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