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

Hot water in a immersion heater.

Extracts from this document...


Hot water in a immersion heater. Background Knowledge: Water may be used to heat up water during the night using an immersion heater this is to take advantage of the cheap rate of electricity. But the problem is to keep the water's heat till the time when it is used. E.g. for a bath or washing up. Immersion heaters are used in many homes and are very efficient. They insulate heat well, this is because most of them have an insulated jacket which is mainly made out of a fibre glass wool and are coated with a bright colour this is because fibre glass wool is very thick and does have many air holes in it. This is good because heat air is a good conductor of heat and a bad insulator of heat, therefore the fewer the air holes the fewer the heat is that is conducted. Also the being as the wool has an outer colour coat which is bright this is also good as bright colours are good emitters of heat. ...read more.


This may cause me to have flexural results which I will discuss in my evaluation. Prediction: I predict that the best insulator of heat will be a thick solid material which does not have many air holes as the air holes will conduct the heat. Explanation: Equipment: Bunsen burner, beaker, thermometer, heat mat, tripod, tin cans, cotton wool, foil, velvet and water. In my experiment I will keep the same the volume of the water as if I have different volumes it will effect the heat that is contained in the can, I will also keep the shape of the tin the same as if I change it might effect the way the heat is spread finally I will not change the size of the cans this is because the size of the cans will effect the way the heat is spread and the amount of heat that the water has got. I will also put lids on my cans; this is because heat rises so I will put a lid on the top to stop the heat from rising and escaping. ...read more.


My graph shows that there was no major drop in the temperatures, and also that the no insulation experiment dropped to the lowest temperature out of all of them. This shows that the insulation actually does work. However there was no major difference in all of the temperature drops. My prediction not fully correct, but I was correct in saying that a solid material will insulate the heat well. Evaluation: Overall my experiment went well and I found that what I though was correct, however next time I would work with more people to help get more results. If I was to do this experiment again I would also use a lot more colors for the coating so I could see what effect a range of coluors would have on the insulation of heat. I would also use more materials to find the perfect insulator of heat. Pratin Patel 10O MR Welsh Science Coursework 22nd November 2003 Pratin Patel 10O MR Welsh Science Coursework 22nd November 2003 ...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. Free essay

    Biology Coursework

    used which could of lead to heat causing it go black/green instead of it going light purple. I also believe this because in my preliminary I had the same problem occurring. At the measurement of 30 cm, readings 1 and 2 produced a ph that made the iodine change to green.

  2. Science Coursework

    at any given distance. I will also make sure that there is always the same person (me) stopping and starting the stopwatch because different people might stop or start the watch at different times. So if there is only one person starting and stopping then the results will all be

  1. Investigation into the temperature rise of water when heated by an electric immersion heater ...

    (and then recorded) * The voltmeter and power supply will be turned on and turned up to 10 volts (checking the voltage on the voltmeter) and the ammeter reading will be recorded * The immersion heater will be lowered into the water until it is 1cm from the base of the beaker and the stop-clock will be started simultaneously.

  2. Investigation into the temperature rise of water when heated by an electric immersion heater ...

    Perhaps one reason why there is a slight scatter is due to the stirring. Although this did increase reliability by preventing convection currents, I could not guarantee that I stirred for exactly the same length of time and with the same speed each time.

  1. In my physics lessons I will be investigating what effects the speed of heating ...

    Predictions (scientifically) Out of all the ranges of amounts I've predicted that 10ml amount will heat the quickest because theirs less atoms and molecules to provide with energy to heat the water. Also the liquids remains at the same volume unless the temperature changes.

  2. The aim of this experiment is to find out which is the best insulator ...

    cylinder with 200mls of boiling water and pour 100mls into each can, place on lids, insert probes, click on 'start' and take readings every minute for 10 minutes.

  1. Lemna coursework

    This is because magnesium is more important to plants than iron but less important than nitrogen to plants. Magnesium is one of the raw materials of chlorophyll, and also helps to activate some enzymes involved in energy transfers. Therefore, I predict that in the lemna lacking in magnesium we will see yellow patches on the leaves.

  2. Physics coursework : temperature change of water heated with an immersion heater

    measure the amount of water), stop clock (to time how long the heater has been heated for), glass rod with a coil wrapped around it which will be used as the heater. I predict that the amount of time the heater is heated for will be proportional to the change in temperature.

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