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

Cooling curves - Temperature in insulators: Preliminary Investigation

Extracts from this document...

Introduction

Cooling curves - Temperature in insulators Preliminary Investigation Question Which of the four materials acts as the best insulator when wrapped around a glass beaker which is filled with boiling water? Aim The aim of this investigation is to test four materials (polystyrene, fibre glass, cotton wool and bubble wrap), to see which one acts as the best insulator. The temperature of the boiling water and the material inside and outside will be taken at regular intervals by a data logger and form this it will show the material that can insulate the best. So this chosen material can be further tested in the main practical by testing various thicknesses of the material, finding the optimum size at which the material acts best as the insulator. Theory In theory a good insulator and poor insulator will produce a graph like this: A good insulator will keep the temperature of the boiling water as high as possible during the 20 minutes it will be timed for. ...read more.

Middle

Apparatus > Bubble wrap > Polystyrene > Fibre Glass > Cotton wool > Air > 5 Beakers > Boiling water (kettle) > Probes (attached to data logger) > Thermometer > Safety goggles > Gloves > Mask > Elastic band > Lid Method > Firstly put on safety goggles > Next collect all three beakers > Cut all four materials so that they wrap twice around the beaker and twice on the bottom of the beaker. Fill the beakers with 300ml boiling water > Wait until the water has been poured into the beaker and measure this temperature -(use a thermometer to check this) > Then place the temperature probes into the boiling water in each of the beakers once they are clamped to a clamp stand. After of course the data logger has been set up to a laptop. ...read more.

Conclusion

Then from these results I will carry on to do the experiment with the four materials with or without the lid from this extra investigation. Table of results Time (minutes) Temp �c Temp �c Temp �c Temp �c Cotton Wool Bubble Wrap Fibre Glass Polystyrene From the graphs of each material I will be able to work out the instantaneous temperature at any point. And in the main practical I will be able to work out this and the optimum thickness of the insulating material. From this preliminary work I will be able to see clearly which material will be suitable to use for the main practical, a material that is the best insulator. So I will be looking out for a steep line on the graph. I will finally be assessing whether to use a lid in my main practical by comparing the cotton wool graph with lid with the cotton wool graph without the use of a lid. I should be able to see a significant difference. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Resistant Materials 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 GCSE Resistant Materials essays

  1. What factors affect the cooling of hot water in a container?

    76 77 77 76 76 77 75 76 Silver foil 80 80 80 80 79 80 80 78 79 79 77 79 78 77 78 77 76 77 77 76 77 76 75 76 75 75 75 Averages: Insulating material Av.

  2. Explain Aristotle idea of the four causes.

    A simplified explanation of the Four Causes is given through an article in the Encyclopedia of Philosophy (2001), and these are the following: These simplified versions of Aristotle's definitions for the Four Causes are sufficient enough for us to be able to explain the essence of these concepts in

  1. Sports Equipment -To carry out tests on different types of grip.

    Then do the same for the next one I followed the method above and I got the following results; 1 158 366.2 2.3 2 117 337.8 2.9 3 54 189.4 3.5 4 91 274.0 3.01 5 121 337.9 2.8 6 4 4.5 1.125 7 48 96.1 2.002083 8 64 600+

  2. am going do this by going to different shops and checking the prices of ...

    Mean-overall � 215.62 �160.50 �59.38 �156.25 �88.00 Median-overall �200.00 �151.50 �40.00 �150.00 �99.00 Range-overall � 235.00 �160.50 �75.00 �190.00 �145.00 In this I have wrote the furniture prices in three different Mean, Median and Range. For the mean I added all the value of the furniture and divided it by the number of shops I am taking data from.

  1. Critically discuss the importance of materiality for theories of practical reasoning.

    gains its significance through one's endowing it with importance, or some goal or activity gains its significance through other people attributing to it a significance which affects you, we can call these factors of original and reactive significance respectively. Materiality by contrast illustrates that a factor may carry significance independent

  2. Investigating what kinds of materials are best at keeping water in a boiling tube ...

    Blue Knitted Acrylic- I think this will be a sufficient insulator because although the material is of a dark colour it is quite thick and is knitted so will contain lots of air pockets. Pink Knitted Cotton - I don�t think this will be a good insulator as the material is quite dark absorbing the heat.

  1. The Evidential Value of Glass Fragments.

    include: > Window size - Area of damage relates to number of fragments embedded by backward fragmentation rather than window size. > Glass thickness and type - The harder the glass the more difficult to break therefore the more fragments produced upon breaking. > How was the window broken (i.e.

  2. My aim of this experiment is to recognize which material is the greatest sound ...

    After these have been cut out to the required size, I would then using double the cellotape and stick the material onto the cardboard with the cellotape holding the insulation and cardboard together. Once I have stuck the insulation material to all five sides of the cardboard box I will

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