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

To investigate the effect of insulators on the rate of cooling.

Extracts from this document...


Nadeeem K AIM: To investigate the effect of insulators on the rate of cooling. Introduction: I will be investigating the rate of cooling, by using various numbers of layers of insulators round a beaker of hot water. The science which effect my investigation are as follows: Conduction is a transfer of heat energy through a substance from the hotter region to the cooler region without any movement of the substance itself. As the substance is heated, free electrons spread through the substance bumping into other electrons and passing on Kinetic energy. Gradually energy is transferred along the substance. Radiation is the transfer of heat energy through waves. Hot objects emit mainly infrared radiation which can pass through a vacuum i.e. No medium is needed for its transfer. How much radiation is given out or taken in by an object depends on its surface In this experiment I could have many variables. Ranging from colour to size. They are: - The material of my cup (ceramic, metal, glass, polythene, plastic) - The layers of insulators (no layers, layer, layer etc) [this is what I have chosen to use as my variable] - Different types of insulators (wool, bubble wrap, foam, cotton, paper) ...read more.


- When pouring the water out into the basin after conducting the experiment the beaker will be extremely hot! (Near boiling point) So if I handle it by hand then I could burn myself, or I could drop the water causing the water to either spill onto someone, or it could spill onto the floor and someone could easily trip over it and hurt themselves. Variable & Fair test: There will only be ONE thing that will change throughout the entire experiment. This will be the amount of layers around the beaker. I have to make sure nothing changes except my variable. So everything else has to be kept the same to make this a fair test. The things I will have to keep the same are: - The amount of water used - The temperature of water - The insulator material must always be 'polystyrene' Results: No of layer Start temp Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min Temp after every 1 min 1 87 84 82 80 78 74 73 72 72 70 69 2 86 80 82 82 86 78 ...read more.


I can tell this from my graph by looking at the bar chart, where it is much clearer to see the difference in temperature every one minutes. If you look closely at the line graph you will notice that at one minutes the temperature of the 'one layer' was slightly above the beaker with' two layers'. This cannot be right because the beaker with 1 layer should drop down in temperature quicker then the beaker with 2 layers. Because the beaker with 2 layers has more insulation around it. This could be because we didn't take down the results properly or my average wasn't right. I tried to make my results accurate by making sure everything that I do was a fair test. I could improve my investigation by, like I said before conducting my experiment more than once, so that I can take out a reliable average. Also this would help us to draw out accurate conclusions. My method was good. It was quick, simple and easy to follow by. Especially once we got use to how to do it. I think that my conclusion is very accurate. I drew my conclusion out of previous knowledge, textbooks, class notes and by doing this investigation. I had enough evidence to help draw up this conclusion. To help get even more evidence for my conclusion I could do another type of investigation similar to this. By Nadeem Kazi Nadeeem K ...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 Green Plants as Organisms 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 Green Plants as Organisms essays

  1. Marked by a teacher

    An investigation into the effect of a germination inhibitor on the germination of seeds.

    3 star(s)

    This has nothing to do with the inhibitor because this is 0% concentration so there is no inhibitor - it is just seeds and water. So this batch of seeds is the control, it is used to show how many of the seeds grow under normal conditions, so that the

  2. Marked by a teacher

    Investigating the rate of cooling water in a beaker.

    Since air is a poor conductor of HEAT, this shows that the air pockets in the bubble wrap provided useful insulation against heat loss. This effect can also been seen at the end of the experiment. However heat loss is only prevented to a certain degree of level and not completely.

  1. Factors Affecting Cooling

    � Start stopwatch when thermometer is at 80�C � Start recording results Readings I shall be taking 10 readings throughout the 5 minute period each at regular intervals at exactly 30 seconds. I shall only do 1 experiment for each beaker as there is not enough time to do repeats and average results.

  2. Photosynthesis - revision notes

    ==> Large area to absorb max amount of light energy from sun. Why do leaves have pores/stomata? ==> To allow gases to pass in and out of leaf. Why are leaves thin? ==> Small distance for CO2 to diffuse through after entering leaf. Why do leaves have veins? ==> Skeleton.

  1. An investigation to investigate the effect of the diameter on the cooling rate of ...

    This process can also be called the Wave Motion. Prediction As I decided to change the diameter of 5 beakers (with same amount of water in), I predict that if the diameter decreases the time taken for the hot water to cool will increase.

  2. I am going to investigate the rate of cooling in heated water. In my ...

    My explanation for the pattern or relationship is, in the results the biggest energy molecules turn into gas molecules and the temperature and the rate of cooling begins to drop drastically while the large surface area beaker's (23.1 cm) temperature falls more than the small beakers surface area (20.0 cm).

  1. To investigate the effect of insulators on the rate of cooling.

    And so we would have to re-heat the water to get it to the exact temperature we wanted. Which took up a lot of our time. So we decided to drop it by 5?c. So, in the real experiment we will have the water at 80?c.

  2. The Cooling Rate Of A Fluid

    We can measure the temperature of the coffee using a thermocouple. A thermocouple is composed of two pieces of dissimilar metal wire that are connected together in one or more places. For the purposes of this investigation a two-junction thermocouple will be used where there are two junctions between the dissimilar metals.

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