experiment.page

PURPOSE: How different amounts of air pressure affect the distance the water travels.

USE OF TOY:The toy will be used to shoot water across a distance by pumping air into the gun. By the pumping of the gun, the air pressure inside the gun will increase causing different results at each interval.

MATERIALS:
1.)Water 5.) Duck tape

2.) Super Soaker 6.) Pencil

3.) Measuring tape 7.) Paper

4.) Dry cemented area 8.) Black sharpie

PROCEDURE:
1.) Fill the water gun to the maximum capacity

2.) Stand above a designated mark and pump the gun once.

3.) Press the trigger

4.) Place corresponding piece of duck tape on the farthest spot where the water landed

5.) Repeat the same process for two, three, four, and five pumps

6.) Measure each trial from the starting point to the duck tape

7.) Record data into corresponding slot on the data table

DATA TABLE:

# of pumps

Trial 1

Distance

Trial 2

Distance

Trial 3

Distance

Average Distance

2.8194 m

2.7686 m

2.8448 m

2.8194 m

5.2832 m

5.3594 m

6.223 m

5.6134 m

11.811 m

10.9474 m

10.2362 m

10.9982 m

11.2014 m

12.4714 m

12.2428 m

11.9634 m

12.8778 m

13.081 m

14.3002 m

13.4112 m

BEST AVERAGE DISTANCE: __5 pumps @ 13.4112 m___

Click Here to View Our Pics From The Experiment!

Conclusion:

Our experiment successfully proved that the air pressure within the water gun was protortional to the distance that the water traveled. It showed that the distance the water traveled increased as more air was being forced into the tank. As the air was being forced into the smaller space, it caused the pressure to increase within the gun. This also made the water want to be on the other side, where the pressure wasn't so great. When the trigger was pressed, the water, under pressure, tried to get out of the container, causing it to travel a far distance. We made these observations after taking 3 trials of each number of pumps and graphing the results of each interval. We expected the results to vary more between each amount of pressure, but some factors could have affected that. One factor, wind, could have caused the water to travel a farther distance, or prohibit it from traveling the full amount. Another factor is the human error that could have occured when trying to keep the same angle on the water gun. Minor changes in factors such as these can cause the results from the experiment to vary.