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Convection radiation, and conduction phrases
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Investigation Into How Insulation Can Affect Heat Loss 1/ Huddling 2/ Insulation We will investigate Insulation 3/ Surface Area/Volume Things that could effect heat loss include: Conduction Convection What are they? Radiation We are going to do the following lessons in this order: * Planning * Planning and Trial * Observation * Observation * Analysis * Evaluation Planning In this investigation, we are going to investigate how insulation can affect heat loss. We will do this by using a beaker, with a set amount of hot water in it (50ml), and measure the temperature loss over a set time, and record it. Then, we will wrap a paper towel around the beaker, and measure the temperature loss again. We will then continue to add paper towels each time, and measure the temperature again. To ensure that we get a good set of results, we will do each test three times, and then find the average heat loss for each set of times. To make the test more fair, we will use the same beaker each time, so that the size and thickness of the beaker stays the same each time. We will also use the same amount of water each time, and use the same type of paper towels, so that they are also all the same thickness. To make sure that the experiment is done safely, we will do all of the tests on a clean work surface so that nothing gets broken, and we will be careful when using the kettle, so as not to burn anything with the hot water. Obtaining Results We will do each test three times, and record the results in the upper table, and then find the average result in the lower table. All of these results start from 50ËšC. This is the first set of results Time (Min) 0 5
3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
An Investigation Into How the Thickness of Insulation Affects the Time a Drink Takes to Cool Down
· Repeat each test three times so that we gat a reasonable result and in the case of getting a ‘freak’ result I will repeat that test.
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
Testing must be performed on a pre-established schedule and will be executed under supervision of the qualified individual to validate the sampling; besides, must be implemented by third party testing services, and the Instruments used for analysis should be calibrated in accordance with established procedures.
6.All experimental bottles will be kept in the fridge, to keep temperature constant and not allow the milk to perish, and go all yuck
In order to have a successful, reliable experiment you need sufficient data and evidence, reliable research, variables to test and a follow – up experiment. There are several types of variables you need to do an experiment. An independent variable is the manipulated experimental factor that is changed to see what the effects are. A dependent variable is the outcome. This factor can change in an experiment in reaction to the changes in the independent variable. An experimental group is the group of participants that are exposed to the change that the independent variable represents. The control group is participants who are treated in the same way as the experimental group except for the manipulated factor which is the independent variable (King 24). Proper data, evidence and research is also needed so the experiment turns out correctly and you know what you are testing. A follow – up experiment is not required, however it helps the validity of the conclusion of the experiment. Validity is “the soundness of the conclusions that a researcher draws from an experiment” (King 25). Conducting a follow – up experiment will help researchers and people alike see if the experiment worked properly, continues to help people and see how participants are doing after the experiment is over.
To make sure it is a fair test; the procedure is repeated a couple of
In a 100ml beaker place 50mls of water, measure the temperature of the water and record this initial temperature onto a table. Set the timer and add one teaspoon of Ammonium Nitrate to the water, stir this continuously until the Ammonium Nitrate has dissolved.
It is also important we keep the colour and size of the cross the same this will help keep the results fair for the experiment. Another thing we must do is to make sure that the beaker is completely clean and free of any water or any other substance before we attempt to start the next experiment.
Heat energy is transferred through three ways- conduction, convection and radiation. All three are able to transfer heat from one place to another based off of different principles however, are all three are connected by the physics of heat. Let’s start with heat- what exactly is heat? We can understand heat by knowing that “heat is a thermal energy that flows from the warmer areas to the cooler areas, and the thermal energy is the total of all kinetic energies within a given system.” (Soffar, 2015) Now, we can explore the means to which heat is transferred and how each of them occurs. Heat is transferred through conduction at the molecular level and in simple terms, the transfers occurs through physical contact. In conduction, “the substance
According to the conversation with Graham and Alicia, they are picking out a way to insulate their home. They want to choose from triple glazing, cavity wall insulation, loft insulation, etc. Our class assignment was to help Graham and Alicia to pick the most suitable type of insulation for their home.