• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2

# Physics Design - Leaky Bucket

Extracts from this document...

Introduction

««GreetingLine»»

Physics Design – Leaky Bucket

Research Question: How does the distance of water squirted from a hole in a bucket vary with the depth at which the hole is?

Variables:

 Variable Independent/Dependent/Controlled Description Distance to which water is squirted Dependent If a bucket is filled with water to a certain height and a hole is made at any height on the bucket, the water will squirt out to a certain distance, depending on the pressure it is at in the bucket. Pressure is the ratio of force applied to the area on which it is applied. If the pressure at which the water comes through the hole is to be equal to the pressure on all other points at that point, it will come through with a larger force than is put on the walls of the bucket.

Middle

Water level

Controlled

This must be kept constant because it affects the depth of water in the bucket.

Distance of bucket above the ground

Controlled

This may affect the horizontal distance the water will reach, as air resistance will increase with increase in height above the ground.

Method

1. Take six identical plastic buckets of height 40 cm. Mark the 35 cm level on each bucket. Use a previously drawn stencil to mark holes to be punched in each bucket. Draw these holes at heights 30 cm, 25 cm, 20 cm, 15 cm, 10 cm and 5 cm on each bucket respectively.
2. Carve out the holes using a knife. They could also be melted out. Care must be taken to ensure that the holes are of equal area, and preferably not too large in diameter.
3. Take one bucket at a time, and place it on a stool.

Conclusion

. Change the sheet of tissue like paper for each repeat to ensure more accurate results.

The data collected would be in the form of a table such as this:

 Depth of Water / cm Distance squirted / cm Trial 1 Trial 2 30 25 20 15 10 5

The depth can then be plotted against the average of the two trials of the distance squirted on a graph to obtain a trend. It should show an increasing trend, as water pressure increases as depth increases and therefore this increasing pressure applied on the same small area of the hole pushes the water through with increasing force. As the force increases, the mass of water squirted remains the same as the area of the hole is the same, but acceleration increases. Therefore the distance it is pushed increases. However it is not certain whether this will be a linear or exponential increase as we do not know how the pressure varies with the depth of a bucket.

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

# Related International Baccalaureate Physics essays

1. ## How does the number of holes in a plastic cup affect the time it ...

human reaction time (time needs to pass before the thought from the brain reaches the hand to start and stop the stopwatch). This serves as a limitation because although the stop watch was controlled by the same person each time, a different time lapse will pass each time thus causing

2. ## Physics Wave revision question

This question is about waves and wave properties. (a) By making reference to waves, distinguish between a ray and a wavefront. ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... (3) The diagram below shows three wavefronts incident on a boundary between medium I and medium R. Wavefront CD is shown crossing the boundary.

1. ## Nuclaer Physics

- Geiger counter, ionization chamber Note: * There are natural isotopes but if humans create them, it is called artificial transmutation. Shooting neutrons at an isotope until it becomes unstable. Half Life: * No external properties have an effect on radioactive decay.

2. ## Factors affecting an electromagnet

They can be made to direct a change in the dependent variables. Students, for this lab, are required to state and list the independent variables that are being dealt with. The independent variable should be stated after considering the possibilities and analyzing all aspects of the experiments.

1. ## Movement - modelling the height jumped by horses in the Olympics

Independent: the height at which the ball is released, mark down specific heights on the curtain track in order to release the ball at those heights and measure the velocity and the maximum height it reaches 3. Dependent: height, going to observe and measure this using a ruler, and velocity by using a light gate and the computer 4.

2. ## HL Physics Revision Notes

The area below a Force-displacement graph is equal to the work done. Work done in compressing or extending a spring = .5 kx2 Gravitational potential energy = mgh Kinetic energy is the energy a body possesses due to motion. =.5mv2 Principle of conservation of energy: Energy cannot be created or destroyed, it just changes form.

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

Multiple samples of each tire /size are tested to establish an average rolling resistance value. The rolling resistance in a tire typically declines moderately as the tire temperature rise from cold to normal operating conditions during the first 30 minutes of driving every time the vehicle is used.

2. ## Researching water turbine designs.

As with Peltons, Francis turbines can have vertical or horizontal axis, this configuration being really common in small hydro. Francis turbines can be set in an open flume or attached to a penstock. For small heads and power open flumes were commonly employed, however nowadays the Kaplan turbine provides a better technical and economical solution in such power plants.

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