FAIR-TESTING:
(Change)
- Length of the helicopter (surface area).
(Don’t change)
- The weight only (1 paper clip)
- The height
- The way you drop the paper helicopter
- Use the same helicopter
- Stop the clock as soon as it touches the ground
SAFETY MEASURES:
- Careful with the scissors
- Make sure that you dropping the helicopter from a safe place.
RANGE:
I will use the following length surface areas (7cm,6cm,5cm,4cm and 3cm)
PREDICTION:
I predict that as the surface area of a falling object decreases, the object will fall faster. This is because as the wingspan gets smaller there will be less air resistance pushing up on the object so it will fall faster. Gravity pulls the object to the earth and this will stay the same whatever the wingspan is.
TABLE OF RESULTS:
Height: 2m fall
(ADDING 1ST, 2ND AND 3RD)THEN (DIVIDING BY 3)
This shows us how the height is related to the time, by showing that every (1cm) you cut of every (second) it goes down approximately.
CONCLUSION: I have found out the shorter the wingspan of the falling object the quicker it will fall because there is less air resistance pushing up on the surface. I know from my own knowledge that gravity will pull an object to the ground with whatever the wingspan is. After I done my graph I was happy the way the plots appeared on the page and the pattern made sense to me. You couldn’t do the experiment perfectly because even the slightest mistake would make a difference.
EVALUATION: I started my investigation by planning and practising the experiment so I would get good and clear results. This experiment was very straight forward. Firstly I wrote out my plan this is writing a step by step list on what to do in the experiment. Secondly I wrote out my equipment list (apparatus) this is just the tools I used for the experiment. Thirdly I wrote out my fair testing in other words things I have to change and things I don’t change in the experiment. Fourthly I wrote my safety measures this is just equipment I used to keep myself safe. Fifthly I done my range and this is what following (cm) I’m going to cut of the falling object each time (3cm,4cm,5cm,6cm and 7cm). Sixthly I wrote out my prediction this is my guessing what will happen in the experience. Seventhly I did my table of results, by doing the experiment three times each giving the average. Eighthly I did my layout of the experiment, this is just showing how the experiment was preceded. Ninthly I did my conclusion and this is just talking about the graph and explaining the pattern. The last thing of all was the evaluation this is summary of the whole investigation saying what I did step by step and saying how I could improve the experiment.
I was very happy the way that my graph came out and the way it looked. I tried my best and I achieved what I could with the graph and the investigation. I can improve my method my practising and learning through other investigations.
THE END
Thank YOU FOR READING!
