• 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. In this investigation I aim to find out which materials are the best insulators. ...

    I predict that these factors will effect the efficiency of the material. � Colour � Thickness � Density The lighter the material in colour the better insulator it will be. I predict this because light colours are poor radiators, therefore they will reflect the heat back into the copper beaker.

  1. Explain Aristotle idea of the four causes.

    In actual fact, Aristotle believes that the natural scientist should consider all four causes. He begins to show this by saying that natural science is analogous to various crafts. In the make of building houses, for instance, the builder knows both the form that the house is to take, and the materials of which it is to be composed.

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

    HEAL - it took 1kgs but nothing happened SOLE - it took 3kgs but nothing happened INNER SOLE - it took 4kgs but nothing happened TOE PROTECTION - it took 5kgs but nothing happened Looking at the results this tells you which ever one was cut longer took more weights but still none of them moved.

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

    I had then doubled celloptape and stuck the insulation material onto the box so that there was one layer going all the way around the inside of the cardboard box. I had then pierced a hole in the bottom of the box in the middle of one side, and allowed

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

    � 509.00 � 463.00 DIFFERENCE � 524.00 � 565.00 � 501.00 � 484.00 PERCENTAGE 61% 58.85% 49.60% 51.11% FORMULA=DIFFERENCE/EXPENSIVE X 100 FORMULA=DIFFERENCE/EXPENSIVE WORKING OUT. 524 / 859 X 100 = 61% WORKING OUT.565/960 X 100=58.85% On this table I have put the expensive and the cheapest price from shops that I have took the information.

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

    It is a truism that my engaging in an activity - for example, kicking a football - requires certain preconditions or prerequisites being met first: For example, enough oxygen to my brain, enough food and other general necessities of health which are necessary to engage in such an action.

  2. The Evidential Value of Glass Fragments.

    When recovering control glass samples: > Six pieces, from the broken area, should be collected. > If many panes or items are broken six pieces should be recovered for each item. > All recovered glass should be of the same thickness as the original source and represent of all the glass present.

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