resistance of a piece if wire. The piece of wire is my dependent variable throughout the investigation. I changed the length of the wire in order to measure the resistance of each length. Plan In this investigation‚ a simple circuit will be set up to read the voltage and current when the length of the wire changes. The length will range from 10cm-80cm with intervals of 10cm. The length of the wire will be changed by moving the crocodile clip across the wire and checking the measurements with a ruler
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and take down the lengths of each part. 3. Total them together and multiply by 2.5 to get the actual size. Length of a developing fetus (mm) Age of fetus Body length Thigh length Leg length Total Actual 2 - - - - 2 9 16 5 4 25 62.5 16 28 11 10 49 122.5 20 51 24 21 96 240 24 60 24 26 110 275 32 64 31 26 126 315 38 78 42 36 156 390 Mass of a developing fetus Weeks Grams Weeks Grams 4 0.5 24 650 8 1 28 1100 12 15 32 1700 16 100 36 2400 20 300 38 3300 V. Questions: 1. The actual length of the fetus at
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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
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Pisa “To what extent does the length of the string affect the period of a simple pendulum?” IBDP PHYSICS Internal Assessment – The Simple Pendulum 9 INTRODUCTION The original aim for this invesigation was to “investigate the simple pendulum”. There are many variables one could look into‚ such as displacement‚ angle‚ damping‚ mass of the bob etc. The most interesting variable‚ however‚ is the length of the swinging pendulum. The relationship between the length and the time for one swing (the
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rectangular in shape. The first step would be to get the required input because that is needed for the output. The first step is to get the each of the four rooms’ length and width. Then assign it to the appropriate variable. The area of a rectangle is the length multiply by the width. Then calculate the area of each room by multiplying the length by the width to find the number of square feet. Then we can find the total area by adding all the areas calculated together and that will result in the usable
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Chapter 5 Information Theory and Coding In communication systems‚ information theory‚ pioneered by C. E. Shannon‚ generally deals with mathematical formulation of the information transfer from one place to another. It is concerned with source coding and channel coding. Source coding attempts to minimize the number of bits required to represent the source output at a given level of efficiency. Channel coding‚ on the other hand‚ is used so that information can be transmitted through the channel with
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How‚ When to Use a String A String is a variable length data type which is used to store any length of data. Variable length fields are used because they save space. Example: Raj is 3 characters long‚ Vemuri Rajgopal is 14 character long. With fixed-length fields‚ you need to define each field to be long enough to hold the longest name. This would waste space for records that had short names. In variable length fields it stores the exact length of the string. • String‚ can store any number
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Fiber Length on Contraction 1. As muscle fiber length increases: Contraction Force Increases. Effect of Stimulation Frequency on Contraction 2. As the frequency of stimulation increases‚ the force of contraction: Increases. MATERIALS AND METHODS Measurement of Threshold Stimulus 1. Dependent Variable is the contraction force 2. Independent Variable is the stimulation voltage 3. Controlled Variables are the muscle fiber length‚ temperature‚ freq of stimulation. Effect of Muscle Length on
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Effect of Muscle Fiber Length on Contraction 1. As muscle fiber length increases contraction force increases. Effect of Stimulation Frequency on Contraction 2. As the frequency of stimulation increases‚ the force of contraction: increases. Materials and Methods Measurement of Threshold Stimulus 1. Dependent Variable contraction force 2. Independent Variable stimulation voltage 3. Controlled Variables muscle fiber length; frequency of stimulation; temperature Effect of Muscle Length on Contraction 1
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_________ 5(m Fig. 1.2.1 Diagram showing the general structure Of an animal cell as seen under the electron microscope 1. Calculate the magnification factor 2. Calculate the length of structure G 3. Calculate the diameter of the nucleolus 4. Calculate the diameter of the nucleus 5. Calculate the diameter of the cell at its widest point The diagram below shows a plant cell [pic] ___________
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