Embedded Files
Abstract
Physics DYO Abstract.mp4Material & Methods
Material:
Smart Water Bottle
Nail
Tape
iPad
Timer
Marker
Ruler
Method:
To conduct the experiment, a Smart Water bottle needs to be prepared. Then, use a marker to draw a straight line around the middle of the bottle. Heat the nail so it can penetrate and drill the hole along the line. Repeat this process five times for five holes. Then, use a ruler to draw perpendicularly along the line just drawn and marked by every 1 cm. Above are all the preliminary setups.
To carry out trial one, leave all 5 holes open and fill the water bottle above the highest mark. Start recording on iPad. Each run is over when the water level reaches the hole. Refill the bottle again for a new run. Use tape to seal one hole to carry out a new trial with fewer holes. After the data collection process, AirDrop all the videos on iPad to Laptop and start counting using a timer.
Demonstration of DYO.mp4Demonstration of 1 Trial
Results & Discussion
One Hole
Two Holes
Three Holes
Four Holes
Five Holes
For all five trials, an inverse exponential relationship between the dropping of water level and time is observed, which corroborated with my hypothesis. More specifically, it takes more time for the water level to drop when it is closer to the level of the holes. This can be explained by the fact that there is no more pressure from the above water when it is at the final few levels; hence, the speed of dropping decreases.
Number of Holes vs. Time to the Bottom
Here, as more holes are drilled, an inverse relationship is observed between number of holes and time it takes for the water level to drop to the height of the holes. More specifically, the difference in time decreases as the number holes increases. In other words, it seems like the time will reach a plateau as the number of holes keeps on increasing.
Conclusion
In conclusion, the experiment observes that 1) in all scenarios with different number of holes, the speed of dropping decreases sa the water level drops and approaches the height of the holes; an inverse relationship exists between the water level and time and 2) as the number of hole increases from 1 to 5, the time it takes for the water level to reach the height of the holes decreases in a decreasing rate -- an inverse relationship is also observed here between the water level and the height of the holes.
Page updated
Report abuse