the resistance of a wire is affected by the length of the wire. Theory What is resistance? Resistance is a force which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. The circuit itself can resist the flow of particles if the wires are either very thin or very long. e.g. The filament across an electric light bulb. How is it measured? The resistance of a length of wire is calculated by measuring the current
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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 independent variable will be the length of wire as we will be changing it to
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likely to be compliant with thigh-length SCD’s than knee-length SCD’s. The most common reason for noncompliance with thigh-length SCD’s was that the devices were hot and itchy. Thigh-length SCD’s are less likely to be reapplied after ambulation. Thigh-length SCD’s also have a tendency to be fitted improperly around the patient’s upper leg. The size of the SCD is either too large or too small causing discomfort. This is a common reason for noncompliance. Knee-length SCD’s are lighter and more comfortable
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Z. K. L3 A THE SIMPLE PENDULUM • General Background: A mass m hanging from a string whose length is L and a pivot point on which this mass is fixed are what a simple pendulum (which was discovered during the 10th century by Ibn Yusuf) consists of. During the 17th century‚ it is developed by some physicist‚ especially by Galileo. When the mass hanging from the string is released with an initial angle‚ it starts to move with a periodic motion. The motion can be approximated as a simple
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Introduction This experiment is about to test how will the nichrome wire effect the ampere of the electric current. All the possible factor that will effect to the volt of the current • The Length of the wire • The Diameter of the wire • Temperature • Magnetism Aim To determine the effect of the length of the wire on the ampere of the electric current. Hypothesis Nichrome is an alloy(a metal made by combining two or more metallic elements) that is made out of 80% nickel and 20% chromium
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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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the extent of the effect of another variable to it‚ as in an experiment. In osmosis lab‚ the dependent variable is the length of the potato. The controlled variables are the amount of water‚ amount of salt‚ and the size of the potato. If the potato is placed in a higher salt concentration‚ then the potato will decrease its size. We started the lab by cutting the potato core length (44 mm). Each potato core are placed in test tubes. The test tubes have different salt concentration‚ test tube 1 has
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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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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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Beginners 4 sets (50-60 percent pace) 1)jogging pace (one field length) 20 push ups 2)jog field length 20 sit ups 3)jog field length 20 squat jumps Intermediate 4 sets (60-80%) 1)jog (one field length) 30 push ups 2)run field length 30 sit ups 3) sprint field length 30 squat jumps Advanced 3 sets (80-100%) 1)sprint(one field length) 50 squat jumps 2)sprint field length 20 sit ups 3) sprint field length 30 push ups Conditioning Conditioning exercises are body movements
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