Pressure difference between area of high pressure and low pressure causes the air to flow. Air moves faster as the difference in pressure is getting bigger. So‚ breathing air into the lungs needs lower pressure at the lungs than in the air outside of body. To exhale‚ compared to the air we are breathing‚ the pressure at the lungs should be higher. In order to enlarge the chest cavity when inhalation occurs‚ the muscles between the ribs and diaphragm contract. The motion of inhalation causes the diaphragm
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Dissolved oxygen enters water through the air and plant. Dissolved oxygen produce by the atmosphere and the process is called air saturation. The gasses a stable body of water with no stratification‚ dissolved oxygen will remain at 100% air saturation. 100% air saturation means that the water is holding as many dissolved gas molecules as it can in equilibrium. At equilibrium‚ the percentage of each gas in the water would be equivalent to the percentage of that gas in the atmosphere like its partial
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Physics Lab Research Question : How does the number of strands of spaghetti affect the strength of the spaghetti strands? Candidate Name: Candidate Number : Session : 2013 (http://2.bp.blogspot.com/_nu8MnrzG0PA/TRm8LYg2-RI/AAAAAAAADYw/Q-JCvJHwDxk/s1600/Spaghetti+021.JPG) VARIABLES : Table No.1 - This table shows the independent ‚ dependent and control variables for the experiment. Serial No. | Type of variable | Name of variable | 1 | Independent | Number of spaghetti strands
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Morgan Land Elizabeth Hollis Physics II February 7‚ 2012 Electric Fields Lab Abstract: In this lab we will study the equipotential lines in an electric field in order to study the structure of the electric lines of force. We will plot the position of electric field lines in a given electric field using both a manual method and a computer software program. There is an electric field in any
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DP Physics IA Thermal physics: Specific Heat Capacity of Metals Introduction: In this experiment we are going to measure the specific heat capacity of a unknown metal. To measure the specific heat capacity we will heat up the metal to certain temperature and release the metal in beaker filled with water. By knowing the mass and temperature of water filled in beaker‚ we will be able to calculate the specific capacity of unknown metal by change in temperature of beaker willed
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The speed of light (meaning speed of light in vacuum)‚ usually denoted by c‚ is a physical constant important in many areas of physics. Its value is 299‚792‚458 metres per second‚ a figure that is exact since the length of the metre is defined from this constant and the international standard for time.[2] This speed is approximately 186‚282 miles per second. It is the maximum speed at which all energy‚ matter‚ and information in the universe can travel. It is the speed of all massless particles and
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Laboratory Report Cover Sheet DeVry University College of Engineering and Information Sciences Course Number: ECET110 Professor: Laboratory Number: 1 Laboratory Title: Analysis of a Series Circuit using Simulation and Actual Construction Submittal Date: 3/8/2014 Objectives: 1. To construct a series circuit and measure its equivalent resistance. 2. To predict and verify electrical characteristics of a series circuit using Ohm’s Law and Kirchhoff’s Voltage Law. 3. Determine
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Physics (from Greek φυσική (ἐπιστήμη)‚ i.e. "knowledge of nature"‚ from φύσις‚ physis‚ i.e. "nature"[1][2][3][4][5]) is the natural science that involves the study of matter[6] and its motion through space and time‚ along with related concepts such as energy and force.[7] More broadly‚ it is the general analysis of nature‚ conducted in order to understand how the universe behaves.[8][9][10] Physics is one of the oldest academic disciplines‚ perhaps the oldest through its inclusion of astronomy
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Speed of Light Determining the speed of light is something that has been a very long and trying process. No one scientist could determine such a thing. Galileo was the first noted scientist to attempt experimentation on the speed of light. Other famous scientist‚ such as‚ Roemer‚ Foucault‚ Fizeau‚ Michelson‚ and Einstein added their own discoveries to the collage of information gathered through the years. Every scientist performed their experiments differently based on the knowledge and ability
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PHYSICS UNIT 2 Physics P2 for GCSE Additional Science or GCSE Physics AQA GCSE Science PHYSICS 2 Unit P2.1 Forces and their effects Appreciate that forces can cause changes to the shape or motion of an object. Not only can objects can move in a straight line at a constant speed but they can also change their speed and/ or direction (accelerate or decelerate). Be able to use/produce graphs can help us to describe the movement of an object. These may be distance-time graphs or velocity-time graphs
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