• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

How does the number of holes in a plastic cup affect the time it takes the water to drip out of a cup?

Extracts from this document...

Introduction

Physics Internal Assessment

How does the number of holes in a plastic cup affect the time it takes the water to drip out of a cup?

Nhi Le

P.6

Design:

Problem: How does the number of holes in a paper cup affect the time it takes for the water to drip out of a cup?

Hypothesis: If there are more holes in the plastic cup, the time it takes for the water to drip out of the cup would decrease because there is no physical barrier to prevent the water from dripping out.  

Manipulated Variable: The number of holes at the bottom of the cup

The number of holes at the bottom of the cup would be measured by puncturing the bottom of the cup with a screwdriver with the number of desired holes. The size of each hole would be approximately 1 cm (±.5mm) due to the tip of the screwdriver.

Responding Variable: The drainage time of the water

A graduated cylinder would be used to measure 50 mL (±2 mL) of water. This then would be poured into the cup.

...read more.

Middle

Once all of the trials for the cup with one hole are recorded, repeat step one with the cups needing 2 holes, 3 holes, 4 holes, and 5 holes. Repeat steps 2-5. Record.

Data collection and processing

Data Table:

Table 1: The Number of Holes at the Bottom of a cup and Water Drainage Time (± .01 s)

Number of holes at the bottom of the cup

Trial 1 (±.

...read more.

Conclusion

Investigation Improvements:

There are several ways to improve this investigation to make the data more accurate. To reduce the skewing effect of the water collecting on the side, one could have tested different cups to see which is the best at water drainage. If all of the cups still collected water on the sides, then more trials could have been tested to get a better average of the times it took the water to drain out. Thus there would have been less skewed points. Another way to improve this investigation would have been to tape each cup to the ring stand so that the cup would not have tilted at an angle when the water was poured because certain angles allowed the water to drain faster or slower due to shape of the bottom of the cup.  

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. How does the mass of the paper helicopter affect the drop time of the ...

    Maximum slope: Graph: Conclusion and Evaluation Conclusion: Based on the data collected, the hypothesis is accepted because as the mass of the paper helicopter increases, the average drop time decreases. This is evident in the data collected because the paper helicopter with a mass of 1g (�.1g)

  2. The Affect of Mass on the Time It Takes an Object To Fall

    The helicopter was released from rest and simultaneously we began to record time with the stopwatch. The stopwatch was stopped as soon as the helicopter touched the floor, 184cm away from the start point. This process was repeated four more times for the other trials for data point one.

  1. Investigating the induced emf with the number of windings and different heights

    Method 1 - Connecting the coil to the data logging program on the computer - Configure the computer to measure volt against time - Equip the coil of windings to a stand - Measure a height which will be kept constant under the experiment - Drop a magnet from the exact height every time, through the coil of wire.

  2. The Affect of Mass on the Period

    When the mass reached its original position after being dropped (one full, "back and forth" swing), time was stopped and recorded, giving the time for one period. This same process was repeated four more times for the four other trials for data point one (20g mass).

  1. HL Physics Revision Notes

    Absolute zero and the Kelvin scale: Absolute zero is 0 on the Kelvin scale and -273 on the Celsius scale. It is characterized by the complete absence of heat ? the point at which all atomic and molecular energy ceases.

  2. Light Intensity Investigation

    the 10cm distance trials proved to obtain the highest light intensity (as hypothesized) at an average of 2614.33 Lux and the lowest readings were detected at the 100cm distance. Also, at each trial the readings were lower than those measured in all of the distances shorter than it.

  1. How does the sinkage depth of a tyre affect its rolling resistance ?

    Method of investigation The method of investigation was designed in a way to reduce the possibilities of errors to its lowest potential while at the same time keeping in mind the attainment of highest accuracy of the results . The method involved allowing a bicycle with training wheels to roll

  2. Researching water turbine designs.

    Like the Pelton, it is an impulse turbine, however its buckets are shaped differently and the jet of water strikes the plane of its runner at an angle of 20º. Water enters the runner through one side of the runner disk and emerges from the other.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work