Introduction
Heat is a form of energy that can be transferred from object to another or surroundings but cannot be destroyed. Heat transfer can occur in three ways; conduction, convection and radiation. Conduction is where energy is transferred between objects which are in physical contact; convection is heat transfer of objects to the surroundings and radiation is transfer of energy in atoms from movement of charged particles (Damm & Fedorov 2005). Through these mechanisms, heat gain or heat loss can occur. Heat gain will make objects to be hotter while heat loss will make objects to be cooler.
In daily life, we tend to take initiates to ensure some things remain cool or hot. Insulation …show more content…
The heat loss for this study is measured by determining the change in temperature of water in duration of one hour. Low change of temperature indicates heat has not been lost too much while high change of temperature indicates too much has been lost to the surroundings. Three insulating materials will be experimented in the experiment; paper, polystyrene and glass. These insulating materials will be in cup form where the water will be held. The experiment will be carried out in the lab where the surrounding has the same room temperature and air flow. Hence, these factors are controlled to remove confounding variables in affecting the results of the …show more content…
Then, a kettle is needed to boil water. Then some ice cubes or pipe water to bring down the temperature of boiled water to 60 ⁰C. Three thermometers to measure temperature in each cup and stopwatch to measure time is also needed.
First of all, the water is boiled to 100⁰C. Then, the water temperature is brought down to 60⁰C using tap water or ice cubes. The temperature is measured using thermometer. Then, 40ml of 60⁰C is poured into each cup. The stopwatch is stared at 0 min. the initial temperature is measured and recorded. The temperature for each cup is measured at 10th min, 20th min, 30th min, 40th min, 50th min and finally 60th min. All the temperatures is measured and recorded. The tabulation of the results will look as following:
Time (min) Temperature