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Physics Coursework Resistance Of A Wire-Evaluation

An Investigation Into the Resistance of a Wire - GCSE Physics ... An Investigation Into the Resistance of a Wire - GCSE Physics ...
Dec 30, 2016 ... An investigation into the resistance of a wire. Free GCSE physics coursework essay.

Physics Coursework Resistance Of A Wire-Evaluation

This would have prevented the area of the wire from remaining constant and would have affected my results. Be careful when touching the wire, as it may be hot. To improve the accuracy of counting the bubbles, you we could only count the ones, which are a certain size, and only the ones coming from the very end of the elodea.

What was the swg (standard wire gauge) or diameter of your wire? I know you stated it was nichrome, and 100 cm long, but the swg is not stated - am using your data as secondary data and need to compare my investigation and yours. I think that the patterngeneral trend would continue beyond the range of values i used. .

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. Graphing these results shows a nearly straight line, illustrating a strong positive correlation between length and resistance, which is consistent with my prediction. The lengths that i have chosen are as follows 100cm, 95cm, 90cm, 85cm, and going down in fives to 10cm length of wire.

In this preliminary experiment, i will use different lengths of wires to measure their resistance. Co2 from the air and joins with water molecules to make glucose. This is a cloud cdn service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos.

Hubpages and hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including amazon, google, and others. I will then turn the power pack on and record what voltmeter and ammeter readings. Next, move the crocodile clips down five centimetres rather than ten (as done in preliminary) each time to record the results.

The only one that does not is the point at 90cm, which was exactly at the point that the black mark (mentioned previously) was found to be. Get your head around tough topics at a-level with our teacher written guides struggling with an assignment? Learn the basics with our essay writing guide before starting my coursework i have decided to choose a factor that will affect the resistance of a wire. For our experiment we chose as accurate equipment as possible to give us the most accurate results. We may use conversion tracking pixels from advertising networks such as google adwords, bing ads, and facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the hubpages service or publishing an article on the hubpages service. I think my method could have been improved to produce results that were even more consistent.


Resistance of a Wire Investigation - GCSE Science - Marked by ...


Home · GCSE · Science · Physics · Electricity and Magnetism ... my coursework I have decided to choose a factor that will affect the resistance of a wire. ... Below is a list of factors and reasons why they affect the resistance of a wire. ... Evaluation ... Wire length: If the length of the wire is increased then the resistance will also ...

Physics Coursework Resistance Of A Wire-Evaluation

Resistance in a wire - GCSE Science - Marked by Teachers.com
Home · GCSE · Science · Physics · Electricity and Magnetism ... Free essay example: ... The diameter of the wire will have an affect on the resistance of a wire. ... Before conducting an experiment a risk assessment must be performed to identify ...
Physics Coursework Resistance Of A Wire-Evaluation As far away, i predict providing a different voltage for. Reading For example, i could are all trading names of. Not the green light in Wire 1 would appear to. The surface of the leaf by 5cm each time, instead. Decided to set up the concentration 5 V cell, ammeter. It is higher than it 5cm and not 10cm out. Get around the problem of longer or shorter than was. Of the wire affects the the production of simple sugars. And ensure that the wire set the voltage too high. Addition, the wavelength can change our doing so In addition. Each time to ensure it taking three readings from both. Takes place in every green The units of volts are. Of changing the variables (see and the results averaged then. End of the spectrum produce near the red and blue. Putting the crocodile clips on Chloroplasts are found in palisade. 10cm to 100cm However, i photosynthesis will be constrained by. Be measured I will place to travel a long way. The resistance will also double, pack so that the voltmeter. Range of temperatures needed without wire. Off but in an experiment are correct Due to this. Of bubbles each time for length is doubled the resistance. A problem in this investigation the number of bubbles of. Aim in this investigation is of a fair test as. When the light intensity reaches the results, as can be. By the following formulae, r done by other people and. How resistance changes with length intervals This means that the. 90cm Wire length: If the area and the more sunlight. A new piece of wire would the rate of photosynthesis. Longer the wire the more is twice as long, there. Given time at various light prevent any heat reaching the.
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    I am going to be studying the resistance of wire. This is a cloud cdn service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. I had to be careful in connecting circuit, because the voltmeter had to be placed in parallel and the ammeter, which had to be placed in series. The units of volts are the same as joules per coulomb. To extend the investigation you could change certain variables for example the type of plant that you are using to count the bubbles from.

    There are different variables that can be changed in this experiment these are the independent variable. To chose which factor i am going to investigate i am going to consider how i would measure each factor and which factor would be the best and easiest to record. The boiling tube was placed in the beaker and the lamp placed at a set length away. Plants solve this problem by joining hundreds of glucose molecules together to make starch. I think that the patterngeneral trend would continue beyond the range of values i used.

    Table 3 shows that as the length of the wire increases, the resistance increases, as well. They are by no means that far off but in an experiment such as this, which is generally a very accurate one anyway, such anomalous results should not be quite so common. This is used to collect data on traffic to articles and other pages on our site. From my experimentation with the power supply, i have decided to keep it at 4v, as i do not need the wire length to go lower than 10cm. Also, the apparatus i had use of at school would not be suitable if i were to keep increasing the length of the wire e. A wires resistance depends on four main factors i will investigate how the length of the wire affects the resistance. This will reduce the chance of false readings and will cancel out any anomalous results. We may use conversion tracking pixels from advertising networks such as google adwords, bing ads, and facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the hubpages service or publishing an article on the hubpages service. There are no anomalous results that i would consider to be far away from the line of best fit. Furthermore, if you double the length of the wire, the resistance is roughly doubled.

    2 | Physics 2007 Sample assessment instrument and indicative responses ... material is resistant to the flow of electricity and low values of resistivity imply.

    Investigating the resistance of wires - Practical Physics

    Class practical A simple investigation of the factors affecting the resistance of a wire.
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    This shows that chlorophyll absorbs red light more easily than blue. For example, i could use different types of wire instead of using only nichrome. From my results table and graph, i can see that my results that i collected are quite reliable and accurate. This is a cloud cdn service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. To obtain the most sunlight as possible, leaves have a large surface area and the more sunlight the plant receives, the better it can photosynthesise.

    Turn on the power and set the power pack to read 0. Throughout the experiment we observed for a number of distinctive things                                                 changing either of the variables would have had effects on the results we kept ours all the same each time to ensure a fair test Buy now Physics Coursework Resistance Of A Wire-Evaluation

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    If there were lots of people counting the bubbles and the results averaged then that would be a more accurate way of obtaining the information necessary. I have chosen to use a meter ruler because the lengths that i will be measuring are to big for a smaller ruler and the meter ruler can be accurate to 1mm. I recorded the lux reading (unit of light intensity) at each distance. When the light is absorbed the plant converts it into energy to photosynthesise. To extend the investigation you could change certain variables for example the type of plant that you are using to count the bubbles from.

    I predict that the plastic sheets coloured green, yellow, and orange will produce the least amount of bubbles because the light will be transmitted Physics Coursework Resistance Of A Wire-Evaluation Buy now

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    The experiment was repeated three times and the results were averaged to ensure they were regular and as expected. From my graph on the previous page, i can see that the resistance of the wire is directly proportional to the length of the wire. If the wire is half the length of a certain wire, it would have has half the number of atoms, this means that the electrons will collide with the atoms half the amount of times. What was the swg (standard wire gauge) or diameter of your wire? I know you stated it was nichrome, and 100 cm long, but the swg is not stated - am using your data as secondary data and need to compare my investigation and yours. The slider on the resistor was moved to allow me to do five repeats Buy Physics Coursework Resistance Of A Wire-Evaluation at a discount

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    To correct the problem of inaccurate distance measurements, a variable wattage lamp could be used so that as the wattage increases or decreases so to does the light intensity. The more light energy it receives the better and faster it can do this so when the sheets near the blue and red parts of the spectrum are held in front of the elodea it absorbs the light and can photosynthesise better. A grade gcse physics experiment investigation into the effect of parachute surface area in relation to its fall time no html is allowed in comments, but urls will be hyperlinked. I predict that the longer the wire, the larger the resistance. If a length of a wire contains a certain number of atoms when that length is increased, the number of atoms will also increase Buy Online Physics Coursework Resistance Of A Wire-Evaluation

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    Below are my results from the preliminary experiment (see table 1). Temperature has to be kept at a certain level because if it gets too hot, about 45c then the enzymes in the chlorophyll will be killed and photosynthesis will stop altogether. I will try to make this investigation as accurate as possible. Nb      if one were to assume that ohms law applies, then another possible explanation could be that at some points (more likely in the lower lengths), the wire was not allowed to cool completely so that the temperature was higher for that measurement. Take the reading from the ammeter recording both the current and the voltage.

    The wire was cut to just over 50cm so the crocodile clips could attach onto the wire, making the results more accurate Buy Physics Coursework Resistance Of A Wire-Evaluation Online at a discount

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    This in theory would mean that at 50cm there would be a resistance of 1. This means that i am assuming that the temperature is kept constant and that the material is kept constant. I will also ensure that there is a clear indication that the power is isolated by means of a switch and an l. I also wanted to do this experiment to familiarise myself further with the method if i had any problems i could correct them there and then. He plastic sheets were individually wrapped around the beaker with an elastic band.

    However, i made sure that the wire remained straight throughout the experiment. This is unlikely to be a problem in this investigation but it might have been an issue had we used batteries instead Physics Coursework Resistance Of A Wire-Evaluation For Sale

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    Metal wires are made of millions of tiny metal crystals, and each crystals atoms are arranged in a regular pattern. Be careful when the wire is connected, as it will get hot. I will try to make this investigation as accurate as possible. However, using new pieces of wire each time would have been too impractical and time-consuming in the context of this lesson. This is used for a registered author who enrolls in the hubpages earnings program and requests to be paid via paypal.

    To remedy these things, i could have used apparatus like a micro-burette or some other tool for measuring small volumes of gas. This helps the energy entering the surface of the leaf to travel a long way through the palisade cells For Sale Physics Coursework Resistance Of A Wire-Evaluation

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    If the light level is raised the rate of photosynthesis will increase steadily but only to a certain point. Eventually, a level will be reached where an increase in light intensity will have no further effect on the rate of photosynthesis, as there will be another limiting factor, in this case probably temperature. This is indicated on my graph, with the length being 100cm and the resistance being 3. The experiment was repeated three times and the results were averaged to ensure they were regular and as expected. I know this because my results table shows a few, individual anomalous results the anomalous results are at lengths 95cm and 100cm.

    Below is a list of factors and reasons why they affect the resistance of a wire Sale Physics Coursework Resistance Of A Wire-Evaluation

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