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Physics Introduction In my physics lessons I will be investigating what effects the speed of heating water when heated by an immersion heater. For the investigation I have to take into account the following, but only one of them I am able to change. Type of container, Type of liquid (substance in container), Amount of water, length of coil and voltage applied. All these variables will have different affects on the speed in which the immersion heater is able to heat the water. But what I already know is that heat can pass through water by convection. Convection current works when an atom or molecule is given energy to vibrate or move around, they eventually spread apart and escape from the colder liquid becoming less dense. This is why the warmer and more energetic atom rises throughout the liquid giving energy to surrounding atoms or water molecules. If this atom has enough...

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