• 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
3. 3
3
4. 4
4

# 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.

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.

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.

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

# Related AS and A Level Waves & Cosmology essays

1. ## What affects the voltage output of a solar panel?

3 star(s)

However I will try eliminating the background reading by taking a background reading before turning on the ray box and subtracting the two values. Light could also be reflected from the shiny table surface.

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

This acted as the wave tank 1x plastic jug: Used to control the amount of water in the tray Potential health hazards Minimal risks involved in this experiment apart from possibility of slipping on spillage. Problems that arose and adaptations made to experiment It was found that once the tray

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. ## Dark Matter

This is written as F= G x m1 x m2/ r2. We can apply Newton's Law to freely falling bodies, to our solar system, and maybe even to other heavenly bodies. In our own solar system, all the planets and the satellites follow these laws.

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

Then, different filters will be placed in front of the white beam and the same process will be carried out for different colours for the same angle of incidence. In each case, � will be calculated. Procedure - * Draw the outline of the Perspex slab on the white paper.

2. ## What affects the kinetic energy of a trolley?

There is always some energy loss though, so there is never a 100% transfer of energy from one form to the other. This means that not all the spring's potensal energy will be transfer into Kinetic energy. Prediction: I think that when the the spring is compressed more, Will make

1. ## Waves and Cosmology - AQA GCE Physics Revision Notes

A dim star close to earth may seem to be emitting more power than a brighter star that is further away. To make a fair comparison, the brightness of each star is calculated as it would be if it were 10 parsecs (32.6 light years)

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

These results would be in a table consisting of a column for ‘time elapsed (µ)’ and another for ‘Output voltage (v)’: Output Voltage (v) Time Elapsed (µs) 0 0 The results will then be plotted onto a scatter graph with the X-axis representing the time elapsed, and the Y-axis representing the solar cells output voltage.

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