GCSE Physics Coursework - Resistance of a Wire Coursework Resistance of a Wire Task To investigate how the resistance of a wire is affected by the length of the wire. Theory What is resistance? Electricity is conducted through a conductor‚ in this case wire‚ by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor‚ i.e. it has less resistance. For example‚ gold has more free electrons than
Premium Electric current Ohm's law Electric charge
The resistance of a wire Planning:- Introduction: To investigate the resistance of a wire at different lengths to see whether or not a longer wire has a larger resistance than a shorter wire. Apparatus: Wire Voltmeter Ammeter Battery 2 crocodile clips Metre rule Variable resistor Diagram: Variables: Length Thickness Resistance Material The material and diameter of the wire needs to be kept constant to keep the test fair as we are investigating resistance. The
Premium Orders of magnitude Electrical resistance Measurement
Film: The wire (TV series 2002-2008) The series features the abuse of narcotics from a law enforcer’s‚ abuser’s and a drug dealer’s perspective. Rational choice theory This theory settles on a practical belief that man is an actor who reasons contemplates on benefits‚ means‚ costs and ends then makes a rational choice. Man has a sense comprehensible rationale of free will‚ where he evaluates the risks and benefits for committing a crime. From the excerpts from the film (season1)‚ we see a night
Premium Crime Criminology Police
Aim What is the effect of differing pendulum length on its period? Hypothesis If the length of the pendulum is decreased‚ the period will decrease. Variables Independent: The length of the pendulum (cm) Dependent: The period of the pendulum (s) Controlled: The weight of the swinging mass The angle for maximum displacement Materials: Pendulum (can be as simple as a mass tied to string attached to a piece of cardboard) Retort stand and clamp Stopwatch Ruler Protractor Masking tape
Premium Measurement Pendulum
Introduction The resistance of a wire depends on certain factors. Some of these variables are listed below: Length of wire Diameter or thickness of wire Temperature at which wire is kept The material of which wire is made out of. The potential difference or voltage. Humidity Cross sectional area. Voltage across circuit All these factors will have to be kept constant except the diameter of the wire whilst doing the experiment to ensure that the investigation is
Premium Electrical resistance Electric current Ohm's law
Abstract A pendulum was constructed and altered with differing weights‚ swing lengths‚ and pendulum lengths. The period for each variation was recorded and compared to find the factors that affected the length of the period. It was concluded that the length of the pendulum was the determining factor for the period of the swing. Introduction In 1581‚ Galileo began studying at the University of Pisa‚ where his father hoped he would study medicine. While at the University of Pisa‚ Galileo
Premium Pendulum Orders of magnitude Time
September 17‚ 2008 Wednesday Lab I am writing about the testing of sizes on Paramecium caudatum and bursaria and how they differentiate from one another. In comparing the two specimen’s size I found that the Paramecium caudatum was larger in size than the bursaria. Paramecia are unicellular organisms and are usually less than 0.25mm in length and covered with minute hair-like projections called cilia. They are characterized by their cilia which are used in locomotion and
Premium Length Arithmetic mean Standard deviation
Wire A wire is a single‚ usually cylindrical‚ flexible strand or rod of metal. Wires are used to bear mechanical loads or electricity and telecommunications signals. Wire is commonly formed by drawing the metal through a hole in a die or draw plate. Standard sizes are determined by various wire gauges. The term wire is also used more loosely to refer to a bundle of such strands‚ as in ’multistranded wire’‚ which is more correctly termed a wire rope in mechanics‚ or a cable in electricity. Although
Premium Copper Metal Wire
of similar sizes in to test tubes of different concentrations of sucrose solution‚ and measure any changes in mass and length. Affecting Factors: There are a number of factors which can affect our results. We need to keep them all the same‚ and make sure that the only thing that changes is the concentration of the sucrose solution. These factors include: • Starting length of potato • Volume of Sucrose solution • Temperature of potato • Temperature of Sucrose solution •
Premium Osmosis Semipermeable membrane Chemistry
Throughout this assignment we were asked to analyze a scene in the Wire and give an accurate summarization along with providing a quote to support our ideas. The clip I chose to base my paper on was time stamp 29.32 to 33.26 in season four episode seven. In this scene‚ Prez has his children return to class and begins to explain that they are going to have a computer in the class for special projects along with the usage of newer additions of text books. He tells them that in the new edition they
Premium Education Teacher School