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

investigate how and why the depth of water affects wave speed

Extracts from this document...

Introduction

Physics Coursework - Part 1 - Plan - Josh Schneider -U4E

Physics Coursework: Planning Section

Aim

The aim for this experiment is to investigate how and why the depth of water affects wave speed, wavelength, wave height and also the direction the wave travels in.

Prediction

After thoroughly researching this topic and looking at some preliminary results used in my plan. I can predict that the deeper the water in the ocean or container, the faster the waves will travel. Therefore if I was to halve the amount of water in the plastic container, the wave speed should halve as well and be much slower. I also predict that as the water is refracted from one end of the container, it will return to the other side of the container parallel.

Hypothesis

        A wave is a vibration or an oscillation, which is transmitted through a material or even space, a wave is shown by a regular pattern of disturbance. All waves transfer energy from one point to another without any transfer of particles of matter.

...read more.

Middle

Wave Speed (m/s) = Frequency (Hz) x Wavelength (m)

This equation shows that for a wave that travels at a constant speed, the frequency of waves is inversely proportional to the wavelength.

All waves including light waves, water waves and sound waves can be reflected, refracted and diffracted. Waves are reflected when a barrier is placed in their path. Incident waves are sent out which then hit the barrier, the waves then bounce off (reflect) the barrier at an angle and therefore give off reflected waves. Diffraction is simply when waves move through a gap, as the waves diffract they spread out from the edges. Refraction is a movement, which is relevant to all waves. Refraction occurs when waves cross a boundary between one medium and another (of different density). Therefore there is a change of speed in the waves, which causes the waves to change direction. At the moment however, the most important type of wave to us is refraction, as this is the wave that is being used in our experiment.

...read more.

Conclusion

g the plastic container and lowering it again to create a wave. During the experiment, I started to wonder if the height you lift the container up would affect how fast the waves were to travel. Therefore I planned a smaller scale preliminary experiment to find out whether the height did affect it. I started of a height of 5cm and increased by 1cm each time, finishing at 10cm. I used a constant depth of 3cm. Below are the results that I found…

Height Of Container (cm)

1st Test

2nd Test

Average

5cm

4.35 s

4.33 s

4.34s

6cm

4.31 s

4.32 s

4.315 s

7cm

4.34

4.36 s

4.35 s

8cm

4.29

4.35

4.32 s

9cm

4.30

4.32

4.31 s

10cm

4.35

4.37

4.36 s

As you can see from these results, there is hardly any change in time when altering the height of the container and therefore the height does not affect the wavespeed. This is why I will not be altering the height in the main experiment, as it will have no effect.

...read more.

This student written piece of work is one of many that can be found in our AS and A Level Waves & Cosmology 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 AS and A Level Waves & Cosmology essays

  1. Marked by a teacher

    Wave Coursework

    3 star(s)

    This isnt as I originally predicted. To be able to achieve a relationship between the velocty of the waves and the depth of the water, I have tried plotting V� and VV to see what kind of trend I was able to distinguish.

  2. Peer reviewed

    What affects the voltage output of a solar panel?

    3 star(s)

    This should be taken into consideration in the evaluation, as well as a percentage uncertainty of as high as 50% when measuring the background lighting. Accuracy of Measuring Techniques Apart from sensitivity of instruments, other factors may affect the accuracy of my results.

  1. Investigating the relation between wave speed and tension in a slinky spring

    The above diagrams shows a transverse wave travelling through the slinky. As you can see, this type of wave is much easier to distinguish. Safety There are not any serious safety precautions in this test.

  2. Velocity of a wave in a tank at varying depths of water

    The independent variable was the depth of the water with the dependant variable being the speed of the resulting wave. The equipment 1 x steel ruler: accurate to � 1mm used to measure depth of water, height of drop and length of tray 1 x plastic tray (length 355mm, 35.5cm):

  1. The aim of this experiment is to investigate whether the colour of light incident ...

    It will be refracted. A normal will be drawn perpendicular to the point where the light hits the Perspex slab. Another normal will be drawn perpendicular to the point where the light comes out from the Perspex. The incidence path and the refracted path will be traced and the angle of incidence and refraction calculated.

  2. Dark Matter

    This pattern that he discovered prompted him to conclude that there is a force behind the motions of the planets, and this force turned out to be gravity. Newton and his Laws of Motion With the help of Galileo and Kepler, Isaac Newton came up with his three laws of motion and his Universal Law of Gravitation.

  1. Waves and Cosmology - AQA GCE Physics Revision Notes

    According to this theory, a massive object finds it harder to move due to its strong interaction with the particles in the Higgs field that fills space (Higgs bosons). * Only 4% of the matter in the universe has been accounted for.

  2. I intend to investigate whether any correlation exists between the wavelength of light exerted ...

    This is why gradient is being used as a consistent measure across LED?s; it remains unaffected by higher/lower output voltages provided by the solar panel from different wavelength LED?s. I would then repeat this 10 more times to have 10 different values for the gradient (rate of voltage increase).

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