To determine the heating and cooling curve of water Design: What we are going to do is investigate the phase changes and what the heating curve of water is. We are going to do this is by heating up 100ml of water on a Bunsen burner then adding ice cubes. Use a thermometer to measure the temperature every 30 seconds until it reaches a plateau. Hypothesis: As more time passes‚ the temperature of the water increases. Independent variable: Time Dependent variable: Changing water temperature
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cotton prices. The changes in cotton clothing market give us a good opportunity to illustrate the Principle of Market Equilibrium that any time there is an imbalance between supply and demand‚ economies will normally move toward an equilibrium in which no individual would be better off doing something else. In fact‚ we have now seen that a market tends to have a single price‚ the equilibrium price at which the quantity demanded of a good or service is equal to the quantity supplied. When the demand and/or
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GRAVITATION Kepler’s Laws Towards the end of the sixteenth century‚ Tycho Brahe collected a huge amount of data giving precise measurements of the position of planets. Johannes Kepler‚ after a detailed analysis of the measurements announced three laws in 1619. 1. The orbit of each planet is an ellipse which has the Sun at one of its foci. 2. Each planet moves in such a way that the (imaginary) line joining it to the Sun sweeps out equal areas in equal times. 3. The squares of the periods
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AS Level Physics: Terms & Definitions:- Measurement Random errors are errors of measurements that result in a scatter of readings about a mean value. Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value. Accuracy is a measure of how close the results of an experiment agree with the true value. Precision is a measure of how close the results of an experiment
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The movie Equilibrium directed by Kurt Wimmer‚ and the book 1984 written by George Orwell both explore what would happen when a government has complete control. When you let someone think for you and make all of your decisions‚ you lose what makes you human‚ which is your free will‚ and your ability to make conscious decisions. In both the text and movie they take away human identity to gain control. The key differences are the ways Big Brother and Father seize control‚ and what effect it has on
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Physics 1 – Mechanics and Heat Lecture Notes Prepared by: ENGR. HAROLD JAN R. TERANO‚ ECE Lesson 5 ROTATIONAL KINEMATICS AND DYNAMICS Uniform Circular Motion – an object moves at a constant speed along a circular path. Velocity is always tangent to the path in circular motion. Speed is constant‚ velocity is not. Centripetal Acceleration‚ – acceleration that maintains the object along a circular path directed towards the center. Also called as radial acceleration
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CONDITION OF EQUILIBRIUM IBAÑEZ‚ Jonen Lery L. OBJECTIVE A torque is an influence‚ which tends to change the rotational motion of an object. One way to quantify a torque is force applied times the lever arm. In this experiment we consider the systems in equilibrium and its applications and how the forces acting on the system affect torque. To serve as a guide there are objectives set in performing this experiment. First objective is by the second condition applied to the systems of equilibrium and the
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Physics Moment of a force: Moment of a force = force x perpendicular distance of the line if action if the force from fulcrum Law of moments: When a body is in equilibrium the sum of the clockwise moments about any point equals the sum of the anticlockwise moments about the same point. Centre of mass: Centre of mass is the point where whole mass of the body assumes to be concentrated. II. If the vertical line through the centre of mass is outside the base it will be a topples but if it’s passed
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Children Living with Attention Deficit Hyperactivity Disorder in today’s Society Shawnteka Tinsley College Reading and Study Skills Proffessor LaLinda Street March 19‚ 2013 Children living with Attention Deficit Hyperactivity Disorder In this article the authors Melinda Smith & Robert Segal discuss the behavior of children with Attention Deficit Disorder (ADD); Attention Deficit Hyperactivity Disorder (ADHD). There are many noticeable symptoms that are recognizable before diagnosing
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Mr. Nichols 10/26/2011 Investigate factors that affect the period of a pendulum: The relationship between Density and Time Investigate factors that affect the period of a pendulum: The relationship between Density and Time IB Physics Internal Assessment IB Physics Internal Assessment Introduction The purpose of this experiment is to investigate the relationship between density and time in a homemade pendulum. In order to investigate the phenomenon‚ the density of the hanging object is
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