Edexcel as physics coursework resistivity

Edexcel as physics coursework resistivity

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Resistivity Gcse Coursework

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Resistant Materials [] helps students develop design and making skills with creativity and originality, using a range of

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An Investigation Into the Resistance of a Wire - GCSE Physics Coursework

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How do I find out my uncertainties?

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I will place one crocodile dissertations list at 0cm on the wire and the other at 5cm to complete the circuit. Most of the data points were on, or very close to, the line of best fit.

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At GCSE we found out that there are three factors that affect the resistance of a wire at constant temperature: Below is a table illustrating the effect of changing the variables see Table 2:

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Similarly, the shorter the wire, the smaller the resistance because there will be fewer atoms for the electrons to bump into, thereby easing the flow of electricity.

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Then you'll most likely draw a graph and have to explain what you see on it eg. Resources by subject Everything from mind maps to class notes.

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If this is correct, the graph should show a positive correlation. However, I made sure that the wire remained straight throughout the experiment.

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I could have considered using a new piece of wire each time in order to regulate the temperature more stringently.

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Uni match Our tool will help you find the perfect course for you. The metal is full of "free" electrons that do not stick to any particular atom; rather, they fill the space between the atoms.

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I will also ensure that the wire does not heat up too much coursfwork confirming that I do not set the voltage too high on the power pack and by maintaining the same the voltage for every reading.

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To ensure accuracy I will record the voltage and the current three times every 5cm and take the average reading.

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AS Physics Coursework - Resistivity in a wire.

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Electricity flows in metals. Find your perfect uni place go.

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Follow 2

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Comments are not for promoting your articles or other sites.

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Below is a table of my results Table 3. In addition, my prediction that doubling the length of the wire increases the resistance by a factor of two is correct see Table 4.

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AS and A level Physics - At-a-glance guide Sign in or sign up and post using a HubPages Network account.

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We look at what causes resistance and how to calculate Physics Coursework Investigating Resistance of wires and its

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Follow 1 For example, I could use different types of wire instead of using only nichrome.

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The Night King Forum:

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In this video we start looking at resistancewhich we're going to explore in later videos. Follow 1

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See what teaching support is available. This email address is being protected from spambots.

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Start new discussion Reply.

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Most of the data points were on, or very close to, the line of best fit.

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Don't want to go on holiday with friend Support for teachers User tabs Teaching.

Graphing these results shows a nearly straight line, illustrating a strong positive correlation between length and resistance, which is consistent with my prediction.

What affects the resistance of a piece of wire?

I know you stated it was Nichrome, and cm long, but the SWG is not stated - Am using your data as secondary data and need to compare my investigation and yours. I could also consider using different cross-sectional areas of wires or even change the temperature of the wires deliberately and see how manipulating these variables affect the resistance of the wire.

Advice on everyday issues Replies: Sign up for science emails. I could have considered using a new piece of wire each time in order to regulate the temperature more stringently. A lesson about enzymes for the new edexcel GCSE spec, includes Resources by subject Everything from mind maps to class notes. I really appreciate the info you have logged into this. Footer-Contact us Need to contact us? I will try to make this investigation as accurate as possible.

Ensuring Accuracy To ensure accuracy I will record the voltage and the current three times every 5cm and take the average reading. What do I do? Degrees without fees Discover more about degree-level apprenticeships. Using the same piece of wire throughout the experiment meant its temperature rose slightly over time, which may have affected my results. The temperature of the wire also affects the resistance.

You need JavaScript enabled to view it. However, I made sure that the wire remained straight throughout the experiment. Model House of Commons Replies: Results Below is a table of my results Table 3.

Electrical Resistance is caused by collisions between electrons and the ions of the material of the wire. Sign up to teach Interested in teaching this qualification? Table 3 shows that as the length of the wire increases, the resistance increases, as well. I predict that the longer the wire, the larger the resistance. Should I complain about my supervisor? Don't want to go on holiday with friend This is because if the length of the wire is doubled, the electrons bump into twice as many atoms, so there will be twice as much resistance.

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